Home / 13,631.35-20,432.43-7,050.91

Finding the Fourth Proportional to 13,631.35, 20,432.43 and 7,050.91

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Solution

The fourth proportional to 13,631.35, 20,432.43 and 7,050.91 is: 10,568.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.35 : 20,432.43 = 7,050.91 : x
  2. Step 2: Convert to fraction form
    13,631.35/20,432.43 = 7,050.91/x
  3. Step 3: Cross multiply
    13,631.35x = 20,432.43 × 7,050.91
  4. Step 4: Simplify right side
    13,631.35x = 144,067,225.01
  5. Step 5: Solve for x
    x = 144,067,225.01/13,631.35
  6. Step 6: Final answer
    x = 10,568.82

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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.