Home / 20,926.34-28,878.24-11,495.06

Finding the Fourth Proportional to 20,926.34, 28,878.24 and 11,495.06

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Solution

The fourth proportional to 20,926.34, 28,878.24 and 11,495.06 is: 15,863.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.34 : 28,878.24 = 11,495.06 : x
  2. Step 2: Convert to fraction form
    20,926.34/28,878.24 = 11,495.06/x
  3. Step 3: Cross multiply
    20,926.34x = 28,878.24 × 11,495.06
  4. Step 4: Simplify right side
    20,926.34x = 331,957,101.49
  5. Step 5: Solve for x
    x = 331,957,101.49/20,926.34
  6. Step 6: Final answer
    x = 15,863.12

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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.