Home / 40,877.61-61,288.12-20,848.24

Finding the Fourth Proportional to 40,877.61, 61,288.12 and 20,848.24

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Solution

The fourth proportional to 40,877.61, 61,288.12 and 20,848.24 is: 31,257.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,877.61 : 61,288.12 = 20,848.24 : x
  2. Step 2: Convert to fraction form
    40,877.61/61,288.12 = 20,848.24/x
  3. Step 3: Cross multiply
    40,877.61x = 61,288.12 × 20,848.24
  4. Step 4: Simplify right side
    40,877.61x = 1,277,749,134.20
  5. Step 5: Solve for x
    x = 1,277,749,134.20/40,877.61
  6. Step 6: Final answer
    x = 31,257.92

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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.