Home / 20,586.40-28,414.66-14,214.04

Finding the Fourth Proportional to 20,586.40, 28,414.66 and 14,214.04

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Solution

The fourth proportional to 20,586.40, 28,414.66 and 14,214.04 is: 19,619.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,586.40 : 28,414.66 = 14,214.04 : x
  2. Step 2: Convert to fraction form
    20,586.40/28,414.66 = 14,214.04/x
  3. Step 3: Cross multiply
    20,586.40x = 28,414.66 × 14,214.04
  4. Step 4: Simplify right side
    20,586.40x = 403,887,113.83
  5. Step 5: Solve for x
    x = 403,887,113.83/20,586.40
  6. Step 6: Final answer
    x = 19,619.12

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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.