Home / 42,541.24-63,815.10-12,961.60

Finding the Fourth Proportional to 42,541.24, 63,815.10 and 12,961.60

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Solution

The fourth proportional to 42,541.24, 63,815.10 and 12,961.60 is: 19,443.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,541.24 : 63,815.10 = 12,961.60 : x
  2. Step 2: Convert to fraction form
    42,541.24/63,815.10 = 12,961.60/x
  3. Step 3: Cross multiply
    42,541.24x = 63,815.10 × 12,961.60
  4. Step 4: Simplify right side
    42,541.24x = 827,145,800.16
  5. Step 5: Solve for x
    x = 827,145,800.16/42,541.24
  6. Step 6: Final answer
    x = 19,443.39

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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.