Home / 29,442.72-44,139.12-12,790.20

Finding the Fourth Proportional to 29,442.72, 44,139.12 and 12,790.20

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Solution

The fourth proportional to 29,442.72, 44,139.12 and 12,790.20 is: 19,174.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,442.72 : 44,139.12 = 12,790.20 : x
  2. Step 2: Convert to fraction form
    29,442.72/44,139.12 = 12,790.20/x
  3. Step 3: Cross multiply
    29,442.72x = 44,139.12 × 12,790.20
  4. Step 4: Simplify right side
    29,442.72x = 564,548,172.62
  5. Step 5: Solve for x
    x = 564,548,172.62/29,442.72
  6. Step 6: Final answer
    x = 19,174.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.