Home / 39,663.20-59,430.48-20,942.24

Finding the Fourth Proportional to 39,663.20, 59,430.48 and 20,942.24

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Solution

The fourth proportional to 39,663.20, 59,430.48 and 20,942.24 is: 31,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,663.20 : 59,430.48 = 20,942.24 : x
  2. Step 2: Convert to fraction form
    39,663.20/59,430.48 = 20,942.24/x
  3. Step 3: Cross multiply
    39,663.20x = 59,430.48 × 20,942.24
  4. Step 4: Simplify right side
    39,663.20x = 1,244,607,375.48
  5. Step 5: Solve for x
    x = 1,244,607,375.48/39,663.20
  6. Step 6: Final answer
    x = 31,379.40

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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.