Home / 39,309.52-54,246.36-21,404.74

Finding the Fourth Proportional to 39,309.52, 54,246.36 and 21,404.74

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Solution

The fourth proportional to 39,309.52, 54,246.36 and 21,404.74 is: 29,538.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,309.52 : 54,246.36 = 21,404.74 : x
  2. Step 2: Convert to fraction form
    39,309.52/54,246.36 = 21,404.74/x
  3. Step 3: Cross multiply
    39,309.52x = 54,246.36 × 21,404.74
  4. Step 4: Simplify right side
    39,309.52x = 1,161,129,231.75
  5. Step 5: Solve for x
    x = 1,161,129,231.75/39,309.52
  6. Step 6: Final answer
    x = 29,538.12

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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.