Home / 39,452.52-54,444.78-21,547.20

Finding the Fourth Proportional to 39,452.52, 54,444.78 and 21,547.20

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Solution

The fourth proportional to 39,452.52, 54,444.78 and 21,547.20 is: 29,735.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,452.52 : 54,444.78 = 21,547.20 : x
  2. Step 2: Convert to fraction form
    39,452.52/54,444.78 = 21,547.20/x
  3. Step 3: Cross multiply
    39,452.52x = 54,444.78 × 21,547.20
  4. Step 4: Simplify right side
    39,452.52x = 1,173,132,563.62
  5. Step 5: Solve for x
    x = 1,173,132,563.62/39,452.52
  6. Step 6: Final answer
    x = 29,735.30

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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.