Home / 21,125.46-29,118.33-14,995.28

Finding the Fourth Proportional to 21,125.46, 29,118.33 and 14,995.28

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Solution

The fourth proportional to 21,125.46, 29,118.33 and 14,995.28 is: 20,668.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,125.46 : 29,118.33 = 14,995.28 : x
  2. Step 2: Convert to fraction form
    21,125.46/29,118.33 = 14,995.28/x
  3. Step 3: Cross multiply
    21,125.46x = 29,118.33 × 14,995.28
  4. Step 4: Simplify right side
    21,125.46x = 436,637,511.48
  5. Step 5: Solve for x
    x = 436,637,511.48/21,125.46
  6. Step 6: Final answer
    x = 20,668.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.