Home / 28,430.92-39,224.10-16,487.56

Finding the Fourth Proportional to 28,430.92, 39,224.10 and 16,487.56

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Solution

The fourth proportional to 28,430.92, 39,224.10 and 16,487.56 is: 22,746.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,430.92 : 39,224.10 = 16,487.56 : x
  2. Step 2: Convert to fraction form
    28,430.92/39,224.10 = 16,487.56/x
  3. Step 3: Cross multiply
    28,430.92x = 39,224.10 × 16,487.56
  4. Step 4: Simplify right side
    28,430.92x = 646,709,702.20
  5. Step 5: Solve for x
    x = 646,709,702.20/28,430.92
  6. Step 6: Final answer
    x = 22,746.70

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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.