Home / 23,145.48-31,939.14-13,070.76

Finding the Fourth Proportional to 23,145.48, 31,939.14 and 13,070.76

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Solution

The fourth proportional to 23,145.48, 31,939.14 and 13,070.76 is: 18,036.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,145.48 : 31,939.14 = 13,070.76 : x
  2. Step 2: Convert to fraction form
    23,145.48/31,939.14 = 13,070.76/x
  3. Step 3: Cross multiply
    23,145.48x = 31,939.14 × 13,070.76
  4. Step 4: Simplify right side
    23,145.48x = 417,468,833.55
  5. Step 5: Solve for x
    x = 417,468,833.55/23,145.48
  6. Step 6: Final answer
    x = 18,036.73

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Half scale
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Double scale
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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.