Home / 19,988.72-29,967.66-7,508.48

Finding the Fourth Proportional to 19,988.72, 29,967.66 and 7,508.48

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Solution

The fourth proportional to 19,988.72, 29,967.66 and 7,508.48 is: 11,256.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.72 : 29,967.66 = 7,508.48 : x
  2. Step 2: Convert to fraction form
    19,988.72/29,967.66 = 7,508.48/x
  3. Step 3: Cross multiply
    19,988.72x = 29,967.66 × 7,508.48
  4. Step 4: Simplify right side
    19,988.72x = 225,011,425.92
  5. Step 5: Solve for x
    x = 225,011,425.92/19,988.72
  6. Step 6: Final answer
    x = 11,256.92

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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.