Home / 21,334.68-32,001.72-9,639.72

Finding the Fourth Proportional to 21,334.68, 32,001.72 and 9,639.72

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Solution

The fourth proportional to 21,334.68, 32,001.72 and 9,639.72 is: 14,459.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,334.68 : 32,001.72 = 9,639.72 : x
  2. Step 2: Convert to fraction form
    21,334.68/32,001.72 = 9,639.72/x
  3. Step 3: Cross multiply
    21,334.68x = 32,001.72 × 9,639.72
  4. Step 4: Simplify right side
    21,334.68x = 308,487,620.32
  5. Step 5: Solve for x
    x = 308,487,620.32/21,334.68
  6. Step 6: Final answer
    x = 14,459.44

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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.