Home / 15,275.95-22,887-13,380.70

Finding the Fourth Proportional to 15,275.95, 22,887 and 13,380.70

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Solution

The fourth proportional to 15,275.95, 22,887 and 13,380.70 is: 20,047.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,275.95 : 22,887 = 13,380.70 : x
  2. Step 2: Convert to fraction form
    15,275.95/22,887 = 13,380.70/x
  3. Step 3: Cross multiply
    15,275.95x = 22,887 × 13,380.70
  4. Step 4: Simplify right side
    15,275.95x = 306,244,080.90
  5. Step 5: Solve for x
    x = 306,244,080.90/15,275.95
  6. Step 6: Final answer
    x = 20,047.47

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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.