Home / 20,535.56-28,339.28-12,042.71

Finding the Fourth Proportional to 20,535.56, 28,339.28 and 12,042.71

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Solution

The fourth proportional to 20,535.56, 28,339.28 and 12,042.71 is: 16,619.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.56 : 28,339.28 = 12,042.71 : x
  2. Step 2: Convert to fraction form
    20,535.56/28,339.28 = 12,042.71/x
  3. Step 3: Cross multiply
    20,535.56x = 28,339.28 × 12,042.71
  4. Step 4: Simplify right side
    20,535.56x = 341,281,730.65
  5. Step 5: Solve for x
    x = 341,281,730.65/20,535.56
  6. Step 6: Final answer
    x = 16,619.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.