Home / 38,898.28-53,679.78-22,130.92

Finding the Fourth Proportional to 38,898.28, 53,679.78 and 22,130.92

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Solution

The fourth proportional to 38,898.28, 53,679.78 and 22,130.92 is: 30,540.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,898.28 : 53,679.78 = 22,130.92 : x
  2. Step 2: Convert to fraction form
    38,898.28/53,679.78 = 22,130.92/x
  3. Step 3: Cross multiply
    38,898.28x = 53,679.78 × 22,130.92
  4. Step 4: Simplify right side
    38,898.28x = 1,187,982,916.80
  5. Step 5: Solve for x
    x = 1,187,982,916.80/38,898.28
  6. Step 6: Final answer
    x = 30,540.76

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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.