Home / 39,275.10-54,199.11-21,369.90

Finding the Fourth Proportional to 39,275.10, 54,199.11 and 21,369.90

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Solution

The fourth proportional to 39,275.10, 54,199.11 and 21,369.90 is: 29,490.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,275.10 : 54,199.11 = 21,369.90 : x
  2. Step 2: Convert to fraction form
    39,275.10/54,199.11 = 21,369.90/x
  3. Step 3: Cross multiply
    39,275.10x = 54,199.11 × 21,369.90
  4. Step 4: Simplify right side
    39,275.10x = 1,158,229,560.79
  5. Step 5: Solve for x
    x = 1,158,229,560.79/39,275.10
  6. Step 6: Final answer
    x = 29,490.17

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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.