Home / 19,319.13-28,981.40-6,167.03

Finding the Fourth Proportional to 19,319.13, 28,981.40 and 6,167.03

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Solution

The fourth proportional to 19,319.13, 28,981.40 and 6,167.03 is: 9,251.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.13 : 28,981.40 = 6,167.03 : x
  2. Step 2: Convert to fraction form
    19,319.13/28,981.40 = 6,167.03/x
  3. Step 3: Cross multiply
    19,319.13x = 28,981.40 × 6,167.03
  4. Step 4: Simplify right side
    19,319.13x = 178,728,987.50
  5. Step 5: Solve for x
    x = 178,728,987.50/19,319.13
  6. Step 6: Final answer
    x = 9,251.40

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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.