Home / 39,430.76-54,397.54-22,660.20

Finding the Fourth Proportional to 39,430.76, 54,397.54 and 22,660.20

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Solution

The fourth proportional to 39,430.76, 54,397.54 and 22,660.20 is: 31,261.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,430.76 : 54,397.54 = 22,660.20 : x
  2. Step 2: Convert to fraction form
    39,430.76/54,397.54 = 22,660.20/x
  3. Step 3: Cross multiply
    39,430.76x = 54,397.54 × 22,660.20
  4. Step 4: Simplify right side
    39,430.76x = 1,232,659,135.91
  5. Step 5: Solve for x
    x = 1,232,659,135.91/39,430.76
  6. Step 6: Final answer
    x = 31,261.36

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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.