Home / 39,293.30-54,226.19-21,387.44

Finding the Fourth Proportional to 39,293.30, 54,226.19 and 21,387.44

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Solution

The fourth proportional to 39,293.30, 54,226.19 and 21,387.44 is: 29,515.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,293.30 : 54,226.19 = 21,387.44 : x
  2. Step 2: Convert to fraction form
    39,293.30/54,226.19 = 21,387.44/x
  3. Step 3: Cross multiply
    39,293.30x = 54,226.19 × 21,387.44
  4. Step 4: Simplify right side
    39,293.30x = 1,159,759,385.05
  5. Step 5: Solve for x
    x = 1,159,759,385.05/39,293.30
  6. Step 6: Final answer
    x = 29,515.45

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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.