Home / 19,818.32-29,719.20-6,667.52

Finding the Fourth Proportional to 19,818.32, 29,719.20 and 6,667.52

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Solution

The fourth proportional to 19,818.32, 29,719.20 and 6,667.52 is: 9,998.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.32 : 29,719.20 = 6,667.52 : x
  2. Step 2: Convert to fraction form
    19,818.32/29,719.20 = 6,667.52/x
  3. Step 3: Cross multiply
    19,818.32x = 29,719.20 × 6,667.52
  4. Step 4: Simplify right side
    19,818.32x = 198,153,360.38
  5. Step 5: Solve for x
    x = 198,153,360.38/19,818.32
  6. Step 6: Final answer
    x = 9,998.49

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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.