Home / 21,972.76-32,964.54-6,390.52

Finding the Fourth Proportional to 21,972.76, 32,964.54 and 6,390.52

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Solution

The fourth proportional to 21,972.76, 32,964.54 and 6,390.52 is: 9,587.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.76 : 32,964.54 = 6,390.52 : x
  2. Step 2: Convert to fraction form
    21,972.76/32,964.54 = 6,390.52/x
  3. Step 3: Cross multiply
    21,972.76x = 32,964.54 × 6,390.52
  4. Step 4: Simplify right side
    21,972.76x = 210,660,552.16
  5. Step 5: Solve for x
    x = 210,660,552.16/21,972.76
  6. Step 6: Final answer
    x = 9,587.35

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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.