Home / 38,508.24-53,140.92-21,511.38

Finding the Fourth Proportional to 38,508.24, 53,140.92 and 21,511.38

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Solution

The fourth proportional to 38,508.24, 53,140.92 and 21,511.38 is: 29,685.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,508.24 : 53,140.92 = 21,511.38 : x
  2. Step 2: Convert to fraction form
    38,508.24/53,140.92 = 21,511.38/x
  3. Step 3: Cross multiply
    38,508.24x = 53,140.92 × 21,511.38
  4. Step 4: Simplify right side
    38,508.24x = 1,143,134,523.67
  5. Step 5: Solve for x
    x = 1,143,134,523.67/38,508.24
  6. Step 6: Final answer
    x = 29,685.45

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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.