Home / 20,926.32-28,878.30-11,494.89

Finding the Fourth Proportional to 20,926.32, 28,878.30 and 11,494.89

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Solution

The fourth proportional to 20,926.32, 28,878.30 and 11,494.89 is: 15,862.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.32 : 28,878.30 = 11,494.89 : x
  2. Step 2: Convert to fraction form
    20,926.32/28,878.30 = 11,494.89/x
  3. Step 3: Cross multiply
    20,926.32x = 28,878.30 × 11,494.89
  4. Step 4: Simplify right side
    20,926.32x = 331,952,881.89
  5. Step 5: Solve for x
    x = 331,952,881.89/20,926.32
  6. Step 6: Final answer
    x = 15,862.94

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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.