Home / 23,749.40-32,774.15-13,139.03

Finding the Fourth Proportional to 23,749.40, 32,774.15 and 13,139.03

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Solution

The fourth proportional to 23,749.40, 32,774.15 and 13,139.03 is: 18,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,749.40 : 32,774.15 = 13,139.03 : x
  2. Step 2: Convert to fraction form
    23,749.40/32,774.15 = 13,139.03/x
  3. Step 3: Cross multiply
    23,749.40x = 32,774.15 × 13,139.03
  4. Step 4: Simplify right side
    23,749.40x = 430,620,654.86
  5. Step 5: Solve for x
    x = 430,620,654.86/23,749.40
  6. Step 6: Final answer
    x = 18,131.85

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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.