Home / 21,182.08-29,228.12-11,750.70

Finding the Fourth Proportional to 21,182.08, 29,228.12 and 11,750.70

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Solution

The fourth proportional to 21,182.08, 29,228.12 and 11,750.70 is: 16,214.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.08 : 29,228.12 = 11,750.70 : x
  2. Step 2: Convert to fraction form
    21,182.08/29,228.12 = 11,750.70/x
  3. Step 3: Cross multiply
    21,182.08x = 29,228.12 × 11,750.70
  4. Step 4: Simplify right side
    21,182.08x = 343,450,869.68
  5. Step 5: Solve for x
    x = 343,450,869.68/21,182.08
  6. Step 6: Final answer
    x = 16,214.22

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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.