Home / 43,752.20-65,628.30-12,162.20

Finding the Fourth Proportional to 43,752.20, 65,628.30 and 12,162.20

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Solution

The fourth proportional to 43,752.20, 65,628.30 and 12,162.20 is: 18,243.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,752.20 : 65,628.30 = 12,162.20 : x
  2. Step 2: Convert to fraction form
    43,752.20/65,628.30 = 12,162.20/x
  3. Step 3: Cross multiply
    43,752.20x = 65,628.30 × 12,162.20
  4. Step 4: Simplify right side
    43,752.20x = 798,184,510.26
  5. Step 5: Solve for x
    x = 798,184,510.26/43,752.20
  6. Step 6: Final answer
    x = 18,243.30

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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.