Home / 38,008.30-57,012.45-31,009.90

Finding the Fourth Proportional to 38,008.30, 57,012.45 and 31,009.90

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Solution

The fourth proportional to 38,008.30, 57,012.45 and 31,009.90 is: 46,514.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,008.30 : 57,012.45 = 31,009.90 : x
  2. Step 2: Convert to fraction form
    38,008.30/57,012.45 = 31,009.90/x
  3. Step 3: Cross multiply
    38,008.30x = 57,012.45 × 31,009.90
  4. Step 4: Simplify right side
    38,008.30x = 1,767,950,373.26
  5. Step 5: Solve for x
    x = 1,767,950,373.26/38,008.30
  6. Step 6: Final answer
    x = 46,514.85

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.