Home / 21,500.16-32,239.64-12,632.76

Finding the Fourth Proportional to 21,500.16, 32,239.64 and 12,632.76

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Solution

The fourth proportional to 21,500.16, 32,239.64 and 12,632.76 is: 18,942.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,500.16 : 32,239.64 = 12,632.76 : x
  2. Step 2: Convert to fraction form
    21,500.16/32,239.64 = 12,632.76/x
  3. Step 3: Cross multiply
    21,500.16x = 32,239.64 × 12,632.76
  4. Step 4: Simplify right side
    21,500.16x = 407,275,634.61
  5. Step 5: Solve for x
    x = 407,275,634.61/21,500.16
  6. Step 6: Final answer
    x = 18,942.91

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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.