Home / 20,725.18-28,592.18-14,441.20

Finding the Fourth Proportional to 20,725.18, 28,592.18 and 14,441.20

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Solution

The fourth proportional to 20,725.18, 28,592.18 and 14,441.20 is: 19,922.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.18 : 28,592.18 = 14,441.20 : x
  2. Step 2: Convert to fraction form
    20,725.18/28,592.18 = 14,441.20/x
  3. Step 3: Cross multiply
    20,725.18x = 28,592.18 × 14,441.20
  4. Step 4: Simplify right side
    20,725.18x = 412,905,389.82
  5. Step 5: Solve for x
    x = 412,905,389.82/20,725.18
  6. Step 6: Final answer
    x = 19,922.89

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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.