Home / 21,282.24-31,923.52-8,800.32

Finding the Fourth Proportional to 21,282.24, 31,923.52 and 8,800.32

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Solution

The fourth proportional to 21,282.24, 31,923.52 and 8,800.32 is: 13,200.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.24 : 31,923.52 = 8,800.32 : x
  2. Step 2: Convert to fraction form
    21,282.24/31,923.52 = 8,800.32/x
  3. Step 3: Cross multiply
    21,282.24x = 31,923.52 × 8,800.32
  4. Step 4: Simplify right side
    21,282.24x = 280,937,191.53
  5. Step 5: Solve for x
    x = 280,937,191.53/21,282.24
  6. Step 6: Final answer
    x = 13,200.55

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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.