Home / 43,343.04-65,017.08-12,180.72

Finding the Fourth Proportional to 43,343.04, 65,017.08 and 12,180.72

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Solution

The fourth proportional to 43,343.04, 65,017.08 and 12,180.72 is: 18,271.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,343.04 : 65,017.08 = 12,180.72 : x
  2. Step 2: Convert to fraction form
    43,343.04/65,017.08 = 12,180.72/x
  3. Step 3: Cross multiply
    43,343.04x = 65,017.08 × 12,180.72
  4. Step 4: Simplify right side
    43,343.04x = 791,954,846.70
  5. Step 5: Solve for x
    x = 791,954,846.70/43,343.04
  6. Step 6: Final answer
    x = 18,271.79

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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.