Home / 28,432.49-39,236.67-16,502.81

Finding the Fourth Proportional to 28,432.49, 39,236.67 and 16,502.81

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Solution

The fourth proportional to 28,432.49, 39,236.67 and 16,502.81 is: 22,773.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432.49 : 39,236.67 = 16,502.81 : x
  2. Step 2: Convert to fraction form
    28,432.49/39,236.67 = 16,502.81/x
  3. Step 3: Cross multiply
    28,432.49x = 39,236.67 × 16,502.81
  4. Step 4: Simplify right side
    28,432.49x = 647,515,113.86
  5. Step 5: Solve for x
    x = 647,515,113.86/28,432.49
  6. Step 6: Final answer
    x = 22,773.78

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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.