Home / 28,191.06-38,903.14-16,254.90

Finding the Fourth Proportional to 28,191.06, 38,903.14 and 16,254.90

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Solution

The fourth proportional to 28,191.06, 38,903.14 and 16,254.90 is: 22,431.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,191.06 : 38,903.14 = 16,254.90 : x
  2. Step 2: Convert to fraction form
    28,191.06/38,903.14 = 16,254.90/x
  3. Step 3: Cross multiply
    28,191.06x = 38,903.14 × 16,254.90
  4. Step 4: Simplify right side
    28,191.06x = 632,366,415.23
  5. Step 5: Solve for x
    x = 632,366,415.23/28,191.06
  6. Step 6: Final answer
    x = 22,431.46

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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.