Home / 21,887.72-32,801.34-18,958.76

Finding the Fourth Proportional to 21,887.72, 32,801.34 and 18,958.76

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Solution

The fourth proportional to 21,887.72, 32,801.34 and 18,958.76 is: 28,411.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887.72 : 32,801.34 = 18,958.76 : x
  2. Step 2: Convert to fraction form
    21,887.72/32,801.34 = 18,958.76/x
  3. Step 3: Cross multiply
    21,887.72x = 32,801.34 × 18,958.76
  4. Step 4: Simplify right side
    21,887.72x = 621,872,732.74
  5. Step 5: Solve for x
    x = 621,872,732.74/21,887.72
  6. Step 6: Final answer
    x = 28,411.95

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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.