Home / 21,965.78-32,948.36-5,325.95

Finding the Fourth Proportional to 21,965.78, 32,948.36 and 5,325.95

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Solution

The fourth proportional to 21,965.78, 32,948.36 and 5,325.95 is: 7,988.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,965.78 : 32,948.36 = 5,325.95 : x
  2. Step 2: Convert to fraction form
    21,965.78/32,948.36 = 5,325.95/x
  3. Step 3: Cross multiply
    21,965.78x = 32,948.36 × 5,325.95
  4. Step 4: Simplify right side
    21,965.78x = 175,481,166.52
  5. Step 5: Solve for x
    x = 175,481,166.52/21,965.78
  6. Step 6: Final answer
    x = 7,988.84

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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.