Home / 37,145.72-51,248.61-21,218.90

Finding the Fourth Proportional to 37,145.72, 51,248.61 and 21,218.90

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Solution

The fourth proportional to 37,145.72, 51,248.61 and 21,218.90 is: 29,274.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,145.72 : 51,248.61 = 21,218.90 : x
  2. Step 2: Convert to fraction form
    37,145.72/51,248.61 = 21,218.90/x
  3. Step 3: Cross multiply
    37,145.72x = 51,248.61 × 21,218.90
  4. Step 4: Simplify right side
    37,145.72x = 1,087,438,874.49
  5. Step 5: Solve for x
    x = 1,087,438,874.49/37,145.72
  6. Step 6: Final answer
    x = 29,274.94

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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.