Home / 38,143.29-52,643.18-21,151.31

Finding the Fourth Proportional to 38,143.29, 52,643.18 and 21,151.31

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Solution

The fourth proportional to 38,143.29, 52,643.18 and 21,151.31 is: 29,191.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,143.29 : 52,643.18 = 21,151.31 : x
  2. Step 2: Convert to fraction form
    38,143.29/52,643.18 = 21,151.31/x
  3. Step 3: Cross multiply
    38,143.29x = 52,643.18 × 21,151.31
  4. Step 4: Simplify right side
    38,143.29x = 1,113,472,140.84
  5. Step 5: Solve for x
    x = 1,113,472,140.84/38,143.29
  6. Step 6: Final answer
    x = 29,191.83

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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.