Home / 28,061.18-38,723.22-15,314.04

Finding the Fourth Proportional to 28,061.18, 38,723.22 and 15,314.04

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Solution

The fourth proportional to 28,061.18, 38,723.22 and 15,314.04 is: 21,132.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,061.18 : 38,723.22 = 15,314.04 : x
  2. Step 2: Convert to fraction form
    28,061.18/38,723.22 = 15,314.04/x
  3. Step 3: Cross multiply
    28,061.18x = 38,723.22 × 15,314.04
  4. Step 4: Simplify right side
    28,061.18x = 593,008,940.01
  5. Step 5: Solve for x
    x = 593,008,940.01/28,061.18
  6. Step 6: Final answer
    x = 21,132.72

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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.