Home / 39,237.60-54,147.24-21,333.06

Finding the Fourth Proportional to 39,237.60, 54,147.24 and 21,333.06

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Solution

The fourth proportional to 39,237.60, 54,147.24 and 21,333.06 is: 29,439.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,237.60 : 54,147.24 = 21,333.06 : x
  2. Step 2: Convert to fraction form
    39,237.60/54,147.24 = 21,333.06/x
  3. Step 3: Cross multiply
    39,237.60x = 54,147.24 × 21,333.06
  4. Step 4: Simplify right side
    39,237.60x = 1,155,126,319.75
  5. Step 5: Solve for x
    x = 1,155,126,319.75/39,237.60
  6. Step 6: Final answer
    x = 29,439.27

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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.