Home / 22,666.11-31,281.35-13,715.82

Finding the Fourth Proportional to 22,666.11, 31,281.35 and 13,715.82

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Solution

The fourth proportional to 22,666.11, 31,281.35 and 13,715.82 is: 18,929.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,666.11 : 31,281.35 = 13,715.82 : x
  2. Step 2: Convert to fraction form
    22,666.11/31,281.35 = 13,715.82/x
  3. Step 3: Cross multiply
    22,666.11x = 31,281.35 × 13,715.82
  4. Step 4: Simplify right side
    22,666.11x = 429,049,297.38
  5. Step 5: Solve for x
    x = 429,049,297.38/22,666.11
  6. Step 6: Final answer
    x = 18,929.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.