Home / 21,925.80-32,872.50-18,212.76

Finding the Fourth Proportional to 21,925.80, 32,872.50 and 18,212.76

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Solution

The fourth proportional to 21,925.80, 32,872.50 and 18,212.76 is: 27,305.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,925.80 : 32,872.50 = 18,212.76 : x
  2. Step 2: Convert to fraction form
    21,925.80/32,872.50 = 18,212.76/x
  3. Step 3: Cross multiply
    21,925.80x = 32,872.50 × 18,212.76
  4. Step 4: Simplify right side
    21,925.80x = 598,698,953.10
  5. Step 5: Solve for x
    x = 598,698,953.10/21,925.80
  6. Step 6: Final answer
    x = 27,305.68

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1.5x scale

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.