Home / 30,412.74-45,624-12,882.72

Finding the Fourth Proportional to 30,412.74, 45,624 and 12,882.72

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Solution

The fourth proportional to 30,412.74, 45,624 and 12,882.72 is: 19,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,412.74 : 45,624 = 12,882.72 : x
  2. Step 2: Convert to fraction form
    30,412.74/45,624 = 12,882.72/x
  3. Step 3: Cross multiply
    30,412.74x = 45,624 × 12,882.72
  4. Step 4: Simplify right side
    30,412.74x = 587,761,217.28
  5. Step 5: Solve for x
    x = 587,761,217.28/30,412.74
  6. Step 6: Final answer
    x = 19,326.15

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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.