Home / 39,154.24-54,031.92-21,248.48

Finding the Fourth Proportional to 39,154.24, 54,031.92 and 21,248.48

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Solution

The fourth proportional to 39,154.24, 54,031.92 and 21,248.48 is: 29,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,154.24 : 54,031.92 = 21,248.48 : x
  2. Step 2: Convert to fraction form
    39,154.24/54,031.92 = 21,248.48/x
  3. Step 3: Cross multiply
    39,154.24x = 54,031.92 × 21,248.48
  4. Step 4: Simplify right side
    39,154.24x = 1,148,096,171.48
  5. Step 5: Solve for x
    x = 1,148,096,171.48/39,154.24
  6. Step 6: Final answer
    x = 29,322.40

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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.