Home / 18,972.20-26,200.59-15,647.96

Finding the Fourth Proportional to 18,972.20, 26,200.59 and 15,647.96

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Solution

The fourth proportional to 18,972.20, 26,200.59 and 15,647.96 is: 21,609.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.20 : 26,200.59 = 15,647.96 : x
  2. Step 2: Convert to fraction form
    18,972.20/26,200.59 = 15,647.96/x
  3. Step 3: Cross multiply
    18,972.20x = 26,200.59 × 15,647.96
  4. Step 4: Simplify right side
    18,972.20x = 409,985,784.30
  5. Step 5: Solve for x
    x = 409,985,784.30/18,972.20
  6. Step 6: Final answer
    x = 21,609.82

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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.