Home / 21,763.28-32,656.16-9,279.95

Finding the Fourth Proportional to 21,763.28, 32,656.16 and 9,279.95

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Solution

The fourth proportional to 21,763.28, 32,656.16 and 9,279.95 is: 13,924.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,763.28 : 32,656.16 = 9,279.95 : x
  2. Step 2: Convert to fraction form
    21,763.28/32,656.16 = 9,279.95/x
  3. Step 3: Cross multiply
    21,763.28x = 32,656.16 × 9,279.95
  4. Step 4: Simplify right side
    21,763.28x = 303,047,713.37
  5. Step 5: Solve for x
    x = 303,047,713.37/21,763.28
  6. Step 6: Final answer
    x = 13,924.72

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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.