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Finding the Fourth Proportional to 43,704.78, 65,540.40 and 15,619.56

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Solution

The fourth proportional to 43,704.78, 65,540.40 and 15,619.56 is: 23,423.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,704.78 : 65,540.40 = 15,619.56 : x
  2. Step 2: Convert to fraction form
    43,704.78/65,540.40 = 15,619.56/x
  3. Step 3: Cross multiply
    43,704.78x = 65,540.40 × 15,619.56
  4. Step 4: Simplify right side
    43,704.78x = 1,023,712,210.22
  5. Step 5: Solve for x
    x = 1,023,712,210.22/43,704.78
  6. Step 6: Final answer
    x = 23,423.35

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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.