Home / 20,023-30,034.50-9,079

Finding the Fourth Proportional to 20,023, 30,034.50 and 9,079

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Solution

The fourth proportional to 20,023, 30,034.50 and 9,079 is: 13,618.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,023 : 30,034.50 = 9,079 : x
  2. Step 2: Convert to fraction form
    20,023/30,034.50 = 9,079/x
  3. Step 3: Cross multiply
    20,023x = 30,034.50 × 9,079
  4. Step 4: Simplify right side
    20,023x = 272,683,225.50
  5. Step 5: Solve for x
    x = 272,683,225.50/20,023
  6. Step 6: Final answer
    x = 13,618.50

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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.