Home / 14,657.31-20,228.08-8,281.69

Finding the Fourth Proportional to 14,657.31, 20,228.08 and 8,281.69

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Solution

The fourth proportional to 14,657.31, 20,228.08 and 8,281.69 is: 11,429.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,657.31 : 20,228.08 = 8,281.69 : x
  2. Step 2: Convert to fraction form
    14,657.31/20,228.08 = 8,281.69/x
  3. Step 3: Cross multiply
    14,657.31x = 20,228.08 × 8,281.69
  4. Step 4: Simplify right side
    14,657.31x = 167,522,687.86
  5. Step 5: Solve for x
    x = 167,522,687.86/14,657.31
  6. Step 6: Final answer
    x = 11,429.29

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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.