Home / 43,677.40-65,516.10-18,713.20

Finding the Fourth Proportional to 43,677.40, 65,516.10 and 18,713.20

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Solution

The fourth proportional to 43,677.40, 65,516.10 and 18,713.20 is: 28,069.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,677.40 : 65,516.10 = 18,713.20 : x
  2. Step 2: Convert to fraction form
    43,677.40/65,516.10 = 18,713.20/x
  3. Step 3: Cross multiply
    43,677.40x = 65,516.10 × 18,713.20
  4. Step 4: Simplify right side
    43,677.40x = 1,226,015,882.52
  5. Step 5: Solve for x
    x = 1,226,015,882.52/43,677.40
  6. Step 6: Final answer
    x = 28,069.80

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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.