Home / 21,960.12-32,937.96-9,479.64

Finding the Fourth Proportional to 21,960.12, 32,937.96 and 9,479.64

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Solution

The fourth proportional to 21,960.12, 32,937.96 and 9,479.64 is: 14,218.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,960.12 : 32,937.96 = 9,479.64 : x
  2. Step 2: Convert to fraction form
    21,960.12/32,937.96 = 9,479.64/x
  3. Step 3: Cross multiply
    21,960.12x = 32,937.96 × 9,479.64
  4. Step 4: Simplify right side
    21,960.12x = 312,240,003.13
  5. Step 5: Solve for x
    x = 312,240,003.13/21,960.12
  6. Step 6: Final answer
    x = 14,218.50

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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.