Home / 20,248.47-30,382.95-13,660.82

Finding the Fourth Proportional to 20,248.47, 30,382.95 and 13,660.82

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Solution

The fourth proportional to 20,248.47, 30,382.95 and 13,660.82 is: 20,498.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248.47 : 30,382.95 = 13,660.82 : x
  2. Step 2: Convert to fraction form
    20,248.47/30,382.95 = 13,660.82/x
  3. Step 3: Cross multiply
    20,248.47x = 30,382.95 × 13,660.82
  4. Step 4: Simplify right side
    20,248.47x = 415,055,859.10
  5. Step 5: Solve for x
    x = 415,055,859.10/20,248.47
  6. Step 6: Final answer
    x = 20,498.13

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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.