Home / 21,635.12-32,437.64-8,488.80

Finding the Fourth Proportional to 21,635.12, 32,437.64 and 8,488.80

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Solution

The fourth proportional to 21,635.12, 32,437.64 and 8,488.80 is: 12,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,635.12 : 32,437.64 = 8,488.80 : x
  2. Step 2: Convert to fraction form
    21,635.12/32,437.64 = 8,488.80/x
  3. Step 3: Cross multiply
    21,635.12x = 32,437.64 × 8,488.80
  4. Step 4: Simplify right side
    21,635.12x = 275,356,638.43
  5. Step 5: Solve for x
    x = 275,356,638.43/21,635.12
  6. Step 6: Final answer
    x = 12,727.30

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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.