Home / 21,271.11-31,846.65-11,253.18

Finding the Fourth Proportional to 21,271.11, 31,846.65 and 11,253.18

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Solution

The fourth proportional to 21,271.11, 31,846.65 and 11,253.18 is: 16,848.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,271.11 : 31,846.65 = 11,253.18 : x
  2. Step 2: Convert to fraction form
    21,271.11/31,846.65 = 11,253.18/x
  3. Step 3: Cross multiply
    21,271.11x = 31,846.65 × 11,253.18
  4. Step 4: Simplify right side
    21,271.11x = 358,376,084.85
  5. Step 5: Solve for x
    x = 358,376,084.85/21,271.11
  6. Step 6: Final answer
    x = 16,848.02

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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.