Home / 21,887.96-32,864.70-12,538.52

Finding the Fourth Proportional to 21,887.96, 32,864.70 and 12,538.52

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Solution

The fourth proportional to 21,887.96, 32,864.70 and 12,538.52 is: 18,826.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887.96 : 32,864.70 = 12,538.52 : x
  2. Step 2: Convert to fraction form
    21,887.96/32,864.70 = 12,538.52/x
  3. Step 3: Cross multiply
    21,887.96x = 32,864.70 × 12,538.52
  4. Step 4: Simplify right side
    21,887.96x = 412,074,698.24
  5. Step 5: Solve for x
    x = 412,074,698.24/21,887.96
  6. Step 6: Final answer
    x = 18,826.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.