Home / 42,148.48-63,213-15,855.88

Finding the Fourth Proportional to 42,148.48, 63,213 and 15,855.88

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Solution

The fourth proportional to 42,148.48, 63,213 and 15,855.88 is: 23,780.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,148.48 : 63,213 = 15,855.88 : x
  2. Step 2: Convert to fraction form
    42,148.48/63,213 = 15,855.88/x
  3. Step 3: Cross multiply
    42,148.48x = 63,213 × 15,855.88
  4. Step 4: Simplify right side
    42,148.48x = 1,002,297,742.44
  5. Step 5: Solve for x
    x = 1,002,297,742.44/42,148.48
  6. Step 6: Final answer
    x = 23,780.16

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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.