Home / 21,799.32-32,702.28-9,319.38

Finding the Fourth Proportional to 21,799.32, 32,702.28 and 9,319.38

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Solution

The fourth proportional to 21,799.32, 32,702.28 and 9,319.38 is: 13,980.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,799.32 : 32,702.28 = 9,319.38 : x
  2. Step 2: Convert to fraction form
    21,799.32/32,702.28 = 9,319.38/x
  3. Step 3: Cross multiply
    21,799.32x = 32,702.28 × 9,319.38
  4. Step 4: Simplify right side
    21,799.32x = 304,764,974.19
  5. Step 5: Solve for x
    x = 304,764,974.19/21,799.32
  6. Step 6: Final answer
    x = 13,980.48

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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.