Home / 21,793.14-30,073.95-12,841.20

Finding the Fourth Proportional to 21,793.14, 30,073.95 and 12,841.20

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Solution

The fourth proportional to 21,793.14, 30,073.95 and 12,841.20 is: 17,720.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,793.14 : 30,073.95 = 12,841.20 : x
  2. Step 2: Convert to fraction form
    21,793.14/30,073.95 = 12,841.20/x
  3. Step 3: Cross multiply
    21,793.14x = 30,073.95 × 12,841.20
  4. Step 4: Simplify right side
    21,793.14x = 386,185,606.74
  5. Step 5: Solve for x
    x = 386,185,606.74/21,793.14
  6. Step 6: Final answer
    x = 17,720.51

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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.