Home / 39,921.20-59,887.26-13,618.88

Finding the Fourth Proportional to 39,921.20, 59,887.26 and 13,618.88

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Solution

The fourth proportional to 39,921.20, 59,887.26 and 13,618.88 is: 20,430.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,921.20 : 59,887.26 = 13,618.88 : x
  2. Step 2: Convert to fraction form
    39,921.20/59,887.26 = 13,618.88/x
  3. Step 3: Cross multiply
    39,921.20x = 59,887.26 × 13,618.88
  4. Step 4: Simplify right side
    39,921.20x = 815,597,108.03
  5. Step 5: Solve for x
    x = 815,597,108.03/39,921.20
  6. Step 6: Final answer
    x = 20,430.18

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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.