Home / 37,997.28-52,434.61-21,000.65

Finding the Fourth Proportional to 37,997.28, 52,434.61 and 21,000.65

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Solution

The fourth proportional to 37,997.28, 52,434.61 and 21,000.65 is: 28,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,997.28 : 52,434.61 = 21,000.65 : x
  2. Step 2: Convert to fraction form
    37,997.28/52,434.61 = 21,000.65/x
  3. Step 3: Cross multiply
    37,997.28x = 52,434.61 × 21,000.65
  4. Step 4: Simplify right side
    37,997.28x = 1,101,160,577.82
  5. Step 5: Solve for x
    x = 1,101,160,577.82/37,997.28
  6. Step 6: Final answer
    x = 28,979.98

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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.