Home / 21,630.65-32,439.69-8,302.70

Finding the Fourth Proportional to 21,630.65, 32,439.69 and 8,302.70

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Solution

The fourth proportional to 21,630.65, 32,439.69 and 8,302.70 is: 12,451.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.65 : 32,439.69 = 8,302.70 : x
  2. Step 2: Convert to fraction form
    21,630.65/32,439.69 = 8,302.70/x
  3. Step 3: Cross multiply
    21,630.65x = 32,439.69 × 8,302.70
  4. Step 4: Simplify right side
    21,630.65x = 269,337,095.26
  5. Step 5: Solve for x
    x = 269,337,095.26/21,630.65
  6. Step 6: Final answer
    x = 12,451.64

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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.