Home / 28,180.26-42,278.40-14,123.34

Finding the Fourth Proportional to 28,180.26, 42,278.40 and 14,123.34

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Solution

The fourth proportional to 28,180.26, 42,278.40 and 14,123.34 is: 21,189.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180.26 : 42,278.40 = 14,123.34 : x
  2. Step 2: Convert to fraction form
    28,180.26/42,278.40 = 14,123.34/x
  3. Step 3: Cross multiply
    28,180.26x = 42,278.40 × 14,123.34
  4. Step 4: Simplify right side
    28,180.26x = 597,112,217.86
  5. Step 5: Solve for x
    x = 597,112,217.86/28,180.26
  6. Step 6: Final answer
    x = 21,189.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.