Home / 21,550.72-32,325.12-8,898.88

Finding the Fourth Proportional to 21,550.72, 32,325.12 and 8,898.88

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Solution

The fourth proportional to 21,550.72, 32,325.12 and 8,898.88 is: 13,347.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550.72 : 32,325.12 = 8,898.88 : x
  2. Step 2: Convert to fraction form
    21,550.72/32,325.12 = 8,898.88/x
  3. Step 3: Cross multiply
    21,550.72x = 32,325.12 × 8,898.88
  4. Step 4: Simplify right side
    21,550.72x = 287,657,363.87
  5. Step 5: Solve for x
    x = 287,657,363.87/21,550.72
  6. Step 6: Final answer
    x = 13,347.92

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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.