Home / 22,220.06-30,663.35-13,265.88

Finding the Fourth Proportional to 22,220.06, 30,663.35 and 13,265.88

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Solution

The fourth proportional to 22,220.06, 30,663.35 and 13,265.88 is: 18,306.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,220.06 : 30,663.35 = 13,265.88 : x
  2. Step 2: Convert to fraction form
    22,220.06/30,663.35 = 13,265.88/x
  3. Step 3: Cross multiply
    22,220.06x = 30,663.35 × 13,265.88
  4. Step 4: Simplify right side
    22,220.06x = 406,776,354.66
  5. Step 5: Solve for x
    x = 406,776,354.66/22,220.06
  6. Step 6: Final answer
    x = 18,306.72

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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.