Home / 28,315.52-42,420-16,593.92

Finding the Fourth Proportional to 28,315.52, 42,420 and 16,593.92

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Solution

The fourth proportional to 28,315.52, 42,420 and 16,593.92 is: 24,859.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,315.52 : 42,420 = 16,593.92 : x
  2. Step 2: Convert to fraction form
    28,315.52/42,420 = 16,593.92/x
  3. Step 3: Cross multiply
    28,315.52x = 42,420 × 16,593.92
  4. Step 4: Simplify right side
    28,315.52x = 703,914,086.40
  5. Step 5: Solve for x
    x = 703,914,086.40/28,315.52
  6. Step 6: Final answer
    x = 24,859.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.