Home / 28,209.16-38,937.21-16,280.29

Finding the Fourth Proportional to 28,209.16, 38,937.21 and 16,280.29

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Solution

The fourth proportional to 28,209.16, 38,937.21 and 16,280.29 is: 22,471.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209.16 : 38,937.21 = 16,280.29 : x
  2. Step 2: Convert to fraction form
    28,209.16/38,937.21 = 16,280.29/x
  3. Step 3: Cross multiply
    28,209.16x = 38,937.21 × 16,280.29
  4. Step 4: Simplify right side
    28,209.16x = 633,908,875.90
  5. Step 5: Solve for x
    x = 633,908,875.90/28,209.16
  6. Step 6: Final answer
    x = 22,471.74

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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.