Home / 39,254.94-54,172.18-21,350.30

Finding the Fourth Proportional to 39,254.94, 54,172.18 and 21,350.30

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Solution

The fourth proportional to 39,254.94, 54,172.18 and 21,350.30 is: 29,463.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,254.94 : 54,172.18 = 21,350.30 : x
  2. Step 2: Convert to fraction form
    39,254.94/54,172.18 = 21,350.30/x
  3. Step 3: Cross multiply
    39,254.94x = 54,172.18 × 21,350.30
  4. Step 4: Simplify right side
    39,254.94x = 1,156,592,294.65
  5. Step 5: Solve for x
    x = 1,156,592,294.65/39,254.94
  6. Step 6: Final answer
    x = 29,463.61

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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.