Home / 19,967.76-29,951.64-5,178.15

Finding the Fourth Proportional to 19,967.76, 29,951.64 and 5,178.15

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Solution

The fourth proportional to 19,967.76, 29,951.64 and 5,178.15 is: 7,767.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,967.76 : 29,951.64 = 5,178.15 : x
  2. Step 2: Convert to fraction form
    19,967.76/29,951.64 = 5,178.15/x
  3. Step 3: Cross multiply
    19,967.76x = 29,951.64 × 5,178.15
  4. Step 4: Simplify right side
    19,967.76x = 155,094,084.67
  5. Step 5: Solve for x
    x = 155,094,084.67/19,967.76
  6. Step 6: Final answer
    x = 7,767.23

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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.