Home / 18,423.51-27,635.18-5,275.88

Finding the Fourth Proportional to 18,423.51, 27,635.18 and 5,275.88

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Solution

The fourth proportional to 18,423.51, 27,635.18 and 5,275.88 is: 7,913.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.51 : 27,635.18 = 5,275.88 : x
  2. Step 2: Convert to fraction form
    18,423.51/27,635.18 = 5,275.88/x
  3. Step 3: Cross multiply
    18,423.51x = 27,635.18 × 5,275.88
  4. Step 4: Simplify right side
    18,423.51x = 145,799,728.90
  5. Step 5: Solve for x
    x = 145,799,728.90/18,423.51
  6. Step 6: Final answer
    x = 7,913.79

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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.