Home / 30,158.60-45,248.49-13,517.15

Finding the Fourth Proportional to 30,158.60, 45,248.49 and 13,517.15

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Solution

The fourth proportional to 30,158.60, 45,248.49 and 13,517.15 is: 20,280.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,158.60 : 45,248.49 = 13,517.15 : x
  2. Step 2: Convert to fraction form
    30,158.60/45,248.49 = 13,517.15/x
  3. Step 3: Cross multiply
    30,158.60x = 45,248.49 × 13,517.15
  4. Step 4: Simplify right side
    30,158.60x = 611,630,400.36
  5. Step 5: Solve for x
    x = 611,630,400.36/30,158.60
  6. Step 6: Final answer
    x = 20,280.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.