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Finding the Fourth Proportional to 43,947.42, 65,925.03 and 12,357.76

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Solution

The fourth proportional to 43,947.42, 65,925.03 and 12,357.76 is: 18,537.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,947.42 : 65,925.03 = 12,357.76 : x
  2. Step 2: Convert to fraction form
    43,947.42/65,925.03 = 12,357.76/x
  3. Step 3: Cross multiply
    43,947.42x = 65,925.03 × 12,357.76
  4. Step 4: Simplify right side
    43,947.42x = 814,685,698.73
  5. Step 5: Solve for x
    x = 814,685,698.73/43,947.42
  6. Step 6: Final answer
    x = 18,537.74

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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.