Home / 37,107.38-51,206.28-21,188.72

Finding the Fourth Proportional to 37,107.38, 51,206.28 and 21,188.72

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Solution

The fourth proportional to 37,107.38, 51,206.28 and 21,188.72 is: 29,239.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,107.38 : 51,206.28 = 21,188.72 : x
  2. Step 2: Convert to fraction form
    37,107.38/51,206.28 = 21,188.72/x
  3. Step 3: Cross multiply
    37,107.38x = 51,206.28 × 21,188.72
  4. Step 4: Simplify right side
    37,107.38x = 1,084,995,529.16
  5. Step 5: Solve for x
    x = 1,084,995,529.16/37,107.38
  6. Step 6: Final answer
    x = 29,239.35

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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.