Home / 29,572.14-40,809.52-18,961.75

Finding the Fourth Proportional to 29,572.14, 40,809.52 and 18,961.75

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Solution

The fourth proportional to 29,572.14, 40,809.52 and 18,961.75 is: 26,167.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,572.14 : 40,809.52 = 18,961.75 : x
  2. Step 2: Convert to fraction form
    29,572.14/40,809.52 = 18,961.75/x
  3. Step 3: Cross multiply
    29,572.14x = 40,809.52 × 18,961.75
  4. Step 4: Simplify right side
    29,572.14x = 773,819,915.86
  5. Step 5: Solve for x
    x = 773,819,915.86/29,572.14
  6. Step 6: Final answer
    x = 26,167.19

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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.