Home / 21,800.08-32,713.92-9,320.20

Finding the Fourth Proportional to 21,800.08, 32,713.92 and 9,320.20

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Solution

The fourth proportional to 21,800.08, 32,713.92 and 9,320.20 is: 13,986.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,800.08 : 32,713.92 = 9,320.20 : x
  2. Step 2: Convert to fraction form
    21,800.08/32,713.92 = 9,320.20/x
  3. Step 3: Cross multiply
    21,800.08x = 32,713.92 × 9,320.20
  4. Step 4: Simplify right side
    21,800.08x = 304,900,277.18
  5. Step 5: Solve for x
    x = 304,900,277.18/21,800.08
  6. Step 6: Final answer
    x = 13,986.20

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1.5x scale

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.