Home / 21,731.96-32,600.67-7,688.69

Finding the Fourth Proportional to 21,731.96, 32,600.67 and 7,688.69

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Solution

The fourth proportional to 21,731.96, 32,600.67 and 7,688.69 is: 11,534.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731.96 : 32,600.67 = 7,688.69 : x
  2. Step 2: Convert to fraction form
    21,731.96/32,600.67 = 7,688.69/x
  3. Step 3: Cross multiply
    21,731.96x = 32,600.67 × 7,688.69
  4. Step 4: Simplify right side
    21,731.96x = 250,656,282.42
  5. Step 5: Solve for x
    x = 250,656,282.42/21,731.96
  6. Step 6: Final answer
    x = 11,534.00

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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.