Home / 39,659.20-59,424.48-20,938.24

Finding the Fourth Proportional to 39,659.20, 59,424.48 and 20,938.24

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Solution

The fourth proportional to 39,659.20, 59,424.48 and 20,938.24 is: 31,373.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,659.20 : 59,424.48 = 20,938.24 : x
  2. Step 2: Convert to fraction form
    39,659.20/59,424.48 = 20,938.24/x
  3. Step 3: Cross multiply
    39,659.20x = 59,424.48 × 20,938.24
  4. Step 4: Simplify right side
    39,659.20x = 1,244,244,024.12
  5. Step 5: Solve for x
    x = 1,244,244,024.12/39,659.20
  6. Step 6: Final answer
    x = 31,373.40

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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.