Home / 22,045.29-30,405.83-15,327.55

Finding the Fourth Proportional to 22,045.29, 30,405.83 and 15,327.55

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Solution

The fourth proportional to 22,045.29, 30,405.83 and 15,327.55 is: 21,140.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,045.29 : 30,405.83 = 15,327.55 : x
  2. Step 2: Convert to fraction form
    22,045.29/30,405.83 = 15,327.55/x
  3. Step 3: Cross multiply
    22,045.29x = 30,405.83 × 15,327.55
  4. Step 4: Simplify right side
    22,045.29x = 466,046,941.11
  5. Step 5: Solve for x
    x = 466,046,941.11/22,045.29
  6. Step 6: Final answer
    x = 21,140.43

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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.