Home / 37,587.28-51,869.68-21,670.78

Finding the Fourth Proportional to 37,587.28, 51,869.68 and 21,670.78

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Solution

The fourth proportional to 37,587.28, 51,869.68 and 21,670.78 is: 29,905.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,587.28 : 51,869.68 = 21,670.78 : x
  2. Step 2: Convert to fraction form
    37,587.28/51,869.68 = 21,670.78/x
  3. Step 3: Cross multiply
    37,587.28x = 51,869.68 × 21,670.78
  4. Step 4: Simplify right side
    37,587.28x = 1,124,056,423.95
  5. Step 5: Solve for x
    x = 1,124,056,423.95/37,587.28
  6. Step 6: Final answer
    x = 29,905.23

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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.