Home / 28,972.72-43,459.08-15,118.48

Finding the Fourth Proportional to 28,972.72, 43,459.08 and 15,118.48

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Solution

The fourth proportional to 28,972.72, 43,459.08 and 15,118.48 is: 22,677.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,972.72 : 43,459.08 = 15,118.48 : x
  2. Step 2: Convert to fraction form
    28,972.72/43,459.08 = 15,118.48/x
  3. Step 3: Cross multiply
    28,972.72x = 43,459.08 × 15,118.48
  4. Step 4: Simplify right side
    28,972.72x = 657,035,231.80
  5. Step 5: Solve for x
    x = 657,035,231.80/28,972.72
  6. Step 6: Final answer
    x = 22,677.72

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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.