Home / 28,432.61-39,224.32-16,489.03

Finding the Fourth Proportional to 28,432.61, 39,224.32 and 16,489.03

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Solution

The fourth proportional to 28,432.61, 39,224.32 and 16,489.03 is: 22,747.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432.61 : 39,224.32 = 16,489.03 : x
  2. Step 2: Convert to fraction form
    28,432.61/39,224.32 = 16,489.03/x
  3. Step 3: Cross multiply
    28,432.61x = 39,224.32 × 16,489.03
  4. Step 4: Simplify right side
    28,432.61x = 646,770,906.76
  5. Step 5: Solve for x
    x = 646,770,906.76/28,432.61
  6. Step 6: Final answer
    x = 22,747.50

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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.