Home / 21,479.09-32,223.33-8,828.91

Finding the Fourth Proportional to 21,479.09, 32,223.33 and 8,828.91

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Solution

The fourth proportional to 21,479.09, 32,223.33 and 8,828.91 is: 13,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,479.09 : 32,223.33 = 8,828.91 : x
  2. Step 2: Convert to fraction form
    21,479.09/32,223.33 = 8,828.91/x
  3. Step 3: Cross multiply
    21,479.09x = 32,223.33 × 8,828.91
  4. Step 4: Simplify right side
    21,479.09x = 284,496,880.47
  5. Step 5: Solve for x
    x = 284,496,880.47/21,479.09
  6. Step 6: Final answer
    x = 13,245.30

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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.