Home / 28,600.87-42,842.72-13,381.55

Finding the Fourth Proportional to 28,600.87, 42,842.72 and 13,381.55

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Solution

The fourth proportional to 28,600.87, 42,842.72 and 13,381.55 is: 20,044.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,600.87 : 42,842.72 = 13,381.55 : x
  2. Step 2: Convert to fraction form
    28,600.87/42,842.72 = 13,381.55/x
  3. Step 3: Cross multiply
    28,600.87x = 42,842.72 × 13,381.55
  4. Step 4: Simplify right side
    28,600.87x = 573,302,220.71
  5. Step 5: Solve for x
    x = 573,302,220.71/28,600.87
  6. Step 6: Final answer
    x = 20,044.92

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1.5x scale

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.