Home / 21,412.58-32,125.34-15,184.62

Finding the Fourth Proportional to 21,412.58, 32,125.34 and 15,184.62

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Solution

The fourth proportional to 21,412.58, 32,125.34 and 15,184.62 is: 22,781.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,412.58 : 32,125.34 = 15,184.62 : x
  2. Step 2: Convert to fraction form
    21,412.58/32,125.34 = 15,184.62/x
  3. Step 3: Cross multiply
    21,412.58x = 32,125.34 × 15,184.62
  4. Step 4: Simplify right side
    21,412.58x = 487,811,080.27
  5. Step 5: Solve for x
    x = 487,811,080.27/21,412.58
  6. Step 6: Final answer
    x = 22,781.52

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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.