Home / 43,591.30-65,386.95-12,426.55

Finding the Fourth Proportional to 43,591.30, 65,386.95 and 12,426.55

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Solution

The fourth proportional to 43,591.30, 65,386.95 and 12,426.55 is: 18,639.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,591.30 : 65,386.95 = 12,426.55 : x
  2. Step 2: Convert to fraction form
    43,591.30/65,386.95 = 12,426.55/x
  3. Step 3: Cross multiply
    43,591.30x = 65,386.95 × 12,426.55
  4. Step 4: Simplify right side
    43,591.30x = 812,534,203.52
  5. Step 5: Solve for x
    x = 812,534,203.52/43,591.30
  6. Step 6: Final answer
    x = 18,639.83

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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.