Home / 42,036.78-63,055.14-15,753.90

Finding the Fourth Proportional to 42,036.78, 63,055.14 and 15,753.90

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Solution

The fourth proportional to 42,036.78, 63,055.14 and 15,753.90 is: 23,630.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,036.78 : 63,055.14 = 15,753.90 : x
  2. Step 2: Convert to fraction form
    42,036.78/63,055.14 = 15,753.90/x
  3. Step 3: Cross multiply
    42,036.78x = 63,055.14 × 15,753.90
  4. Step 4: Simplify right side
    42,036.78x = 993,364,370.05
  5. Step 5: Solve for x
    x = 993,364,370.05/42,036.78
  6. Step 6: Final answer
    x = 23,630.84

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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.