Home / 30,724.52-42,394.77-17,799.20

Finding the Fourth Proportional to 30,724.52, 42,394.77 and 17,799.20

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Solution

The fourth proportional to 30,724.52, 42,394.77 and 17,799.20 is: 24,559.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,724.52 : 42,394.77 = 17,799.20 : x
  2. Step 2: Convert to fraction form
    30,724.52/42,394.77 = 17,799.20/x
  3. Step 3: Cross multiply
    30,724.52x = 42,394.77 × 17,799.20
  4. Step 4: Simplify right side
    30,724.52x = 754,592,778.21
  5. Step 5: Solve for x
    x = 754,592,778.21/30,724.52
  6. Step 6: Final answer
    x = 24,559.95

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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.