Home / 22,355.47-30,853.23-13,407.89

Finding the Fourth Proportional to 22,355.47, 30,853.23 and 13,407.89

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Solution

The fourth proportional to 22,355.47, 30,853.23 and 13,407.89 is: 18,504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,355.47 : 30,853.23 = 13,407.89 : x
  2. Step 2: Convert to fraction form
    22,355.47/30,853.23 = 13,407.89/x
  3. Step 3: Cross multiply
    22,355.47x = 30,853.23 × 13,407.89
  4. Step 4: Simplify right side
    22,355.47x = 413,676,646.95
  5. Step 5: Solve for x
    x = 413,676,646.95/22,355.47
  6. Step 6: Final answer
    x = 18,504.50

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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.