Home / 43,573.50-65,358.80-12,408.75

Finding the Fourth Proportional to 43,573.50, 65,358.80 and 12,408.75

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Solution

The fourth proportional to 43,573.50, 65,358.80 and 12,408.75 is: 18,612.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,573.50 : 65,358.80 = 12,408.75 : x
  2. Step 2: Convert to fraction form
    43,573.50/65,358.80 = 12,408.75/x
  3. Step 3: Cross multiply
    43,573.50x = 65,358.80 × 12,408.75
  4. Step 4: Simplify right side
    43,573.50x = 811,020,947.46
  5. Step 5: Solve for x
    x = 811,020,947.46/43,573.50
  6. Step 6: Final answer
    x = 18,612.71

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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.