Home / 28,200.02-38,920.11-16,260.98

Finding the Fourth Proportional to 28,200.02, 38,920.11 and 16,260.98

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Solution

The fourth proportional to 28,200.02, 38,920.11 and 16,260.98 is: 22,442.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,200.02 : 38,920.11 = 16,260.98 : x
  2. Step 2: Convert to fraction form
    28,200.02/38,920.11 = 16,260.98/x
  3. Step 3: Cross multiply
    28,200.02x = 38,920.11 × 16,260.98
  4. Step 4: Simplify right side
    28,200.02x = 632,879,130.31
  5. Step 5: Solve for x
    x = 632,879,130.31/28,200.02
  6. Step 6: Final answer
    x = 22,442.51

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.