Home / 22,101.95-30,501.19-12,542.47

Finding the Fourth Proportional to 22,101.95, 30,501.19 and 12,542.47

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Solution

The fourth proportional to 22,101.95, 30,501.19 and 12,542.47 is: 17,308.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,101.95 : 30,501.19 = 12,542.47 : x
  2. Step 2: Convert to fraction form
    22,101.95/30,501.19 = 12,542.47/x
  3. Step 3: Cross multiply
    22,101.95x = 30,501.19 × 12,542.47
  4. Step 4: Simplify right side
    22,101.95x = 382,560,199.96
  5. Step 5: Solve for x
    x = 382,560,199.96/22,101.95
  6. Step 6: Final answer
    x = 17,308.89

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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.