Home / 21,101.19-29,124.41-12,150.29

Finding the Fourth Proportional to 21,101.19, 29,124.41 and 12,150.29

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Solution

The fourth proportional to 21,101.19, 29,124.41 and 12,150.29 is: 16,770.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,101.19 : 29,124.41 = 12,150.29 : x
  2. Step 2: Convert to fraction form
    21,101.19/29,124.41 = 12,150.29/x
  3. Step 3: Cross multiply
    21,101.19x = 29,124.41 × 12,150.29
  4. Step 4: Simplify right side
    21,101.19x = 353,869,821.21
  5. Step 5: Solve for x
    x = 353,869,821.21/21,101.19
  6. Step 6: Final answer
    x = 16,770.14

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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.