Home / 43,701.38-65,513.18-20,315.06

Finding the Fourth Proportional to 43,701.38, 65,513.18 and 20,315.06

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Solution

The fourth proportional to 43,701.38, 65,513.18 and 20,315.06 is: 30,454.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,701.38 : 65,513.18 = 20,315.06 : x
  2. Step 2: Convert to fraction form
    43,701.38/65,513.18 = 20,315.06/x
  3. Step 3: Cross multiply
    43,701.38x = 65,513.18 × 20,315.06
  4. Step 4: Simplify right side
    43,701.38x = 1,330,904,182.49
  5. Step 5: Solve for x
    x = 1,330,904,182.49/43,701.38
  6. Step 6: Final answer
    x = 30,454.51

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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.