Home / 21,325.56-29,435.13-12,375.95

Finding the Fourth Proportional to 21,325.56, 29,435.13 and 12,375.95

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Solution

The fourth proportional to 21,325.56, 29,435.13 and 12,375.95 is: 17,082.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.56 : 29,435.13 = 12,375.95 : x
  2. Step 2: Convert to fraction form
    21,325.56/29,435.13 = 12,375.95/x
  3. Step 3: Cross multiply
    21,325.56x = 29,435.13 × 12,375.95
  4. Step 4: Simplify right side
    21,325.56x = 364,287,549.95
  5. Step 5: Solve for x
    x = 364,287,549.95/21,325.56
  6. Step 6: Final answer
    x = 17,082.20

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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.