Home / 20,326.76-28,045.36-13,954.96

Finding the Fourth Proportional to 20,326.76, 28,045.36 and 13,954.96

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Solution

The fourth proportional to 20,326.76, 28,045.36 and 13,954.96 is: 19,254.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,326.76 : 28,045.36 = 13,954.96 : x
  2. Step 2: Convert to fraction form
    20,326.76/28,045.36 = 13,954.96/x
  3. Step 3: Cross multiply
    20,326.76x = 28,045.36 × 13,954.96
  4. Step 4: Simplify right side
    20,326.76x = 391,371,876.99
  5. Step 5: Solve for x
    x = 391,371,876.99/20,326.76
  6. Step 6: Final answer
    x = 19,254.02

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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.