Home / 21,277.17-31,917.06-6,487.11

Finding the Fourth Proportional to 21,277.17, 31,917.06 and 6,487.11

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Solution

The fourth proportional to 21,277.17, 31,917.06 and 6,487.11 is: 9,731.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,277.17 : 31,917.06 = 6,487.11 : x
  2. Step 2: Convert to fraction form
    21,277.17/31,917.06 = 6,487.11/x
  3. Step 3: Cross multiply
    21,277.17x = 31,917.06 × 6,487.11
  4. Step 4: Simplify right side
    21,277.17x = 207,049,479.10
  5. Step 5: Solve for x
    x = 207,049,479.10/21,277.17
  6. Step 6: Final answer
    x = 9,731.06

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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.