Home / 42,430.28-63,613.01-25,786.76

Finding the Fourth Proportional to 42,430.28, 63,613.01 and 25,786.76

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Solution

The fourth proportional to 42,430.28, 63,613.01 and 25,786.76 is: 38,660.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,430.28 : 63,613.01 = 25,786.76 : x
  2. Step 2: Convert to fraction form
    42,430.28/63,613.01 = 25,786.76/x
  3. Step 3: Cross multiply
    42,430.28x = 63,613.01 × 25,786.76
  4. Step 4: Simplify right side
    42,430.28x = 1,640,373,168.15
  5. Step 5: Solve for x
    x = 1,640,373,168.15/42,430.28
  6. Step 6: Final answer
    x = 38,660.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.