Home / 28,230.32-38,959.10-16,897.66

Finding the Fourth Proportional to 28,230.32, 38,959.10 and 16,897.66

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Solution

The fourth proportional to 28,230.32, 38,959.10 and 16,897.66 is: 23,319.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.32 : 38,959.10 = 16,897.66 : x
  2. Step 2: Convert to fraction form
    28,230.32/38,959.10 = 16,897.66/x
  3. Step 3: Cross multiply
    28,230.32x = 38,959.10 × 16,897.66
  4. Step 4: Simplify right side
    28,230.32x = 658,317,625.71
  5. Step 5: Solve for x
    x = 658,317,625.71/28,230.32
  6. Step 6: Final answer
    x = 23,319.52

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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.