Home / 39,230.65-54,137.13-21,325.20

Finding the Fourth Proportional to 39,230.65, 54,137.13 and 21,325.20

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Solution

The fourth proportional to 39,230.65, 54,137.13 and 21,325.20 is: 29,428.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,230.65 : 54,137.13 = 21,325.20 : x
  2. Step 2: Convert to fraction form
    39,230.65/54,137.13 = 21,325.20/x
  3. Step 3: Cross multiply
    39,230.65x = 54,137.13 × 21,325.20
  4. Step 4: Simplify right side
    39,230.65x = 1,154,485,124.68
  5. Step 5: Solve for x
    x = 1,154,485,124.68/39,230.65
  6. Step 6: Final answer
    x = 29,428.14

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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.