Home / 22,926.12-31,639.56-12,855.21

Finding the Fourth Proportional to 22,926.12, 31,639.56 and 12,855.21

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Solution

The fourth proportional to 22,926.12, 31,639.56 and 12,855.21 is: 17,741.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,926.12 : 31,639.56 = 12,855.21 : x
  2. Step 2: Convert to fraction form
    22,926.12/31,639.56 = 12,855.21/x
  3. Step 3: Cross multiply
    22,926.12x = 31,639.56 × 12,855.21
  4. Step 4: Simplify right side
    22,926.12x = 406,733,188.11
  5. Step 5: Solve for x
    x = 406,733,188.11/22,926.12
  6. Step 6: Final answer
    x = 17,741.04

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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.