Home / 21,630.09-32,445.15-8,488.65

Finding the Fourth Proportional to 21,630.09, 32,445.15 and 8,488.65

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Solution

The fourth proportional to 21,630.09, 32,445.15 and 8,488.65 is: 12,732.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.09 : 32,445.15 = 8,488.65 : x
  2. Step 2: Convert to fraction form
    21,630.09/32,445.15 = 8,488.65/x
  3. Step 3: Cross multiply
    21,630.09x = 32,445.15 × 8,488.65
  4. Step 4: Simplify right side
    21,630.09x = 275,415,522.55
  5. Step 5: Solve for x
    x = 275,415,522.55/21,630.09
  6. Step 6: Final answer
    x = 12,732.98

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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.