Home / 21,250.14-29,323.11-11,818.14

Finding the Fourth Proportional to 21,250.14, 29,323.11 and 11,818.14

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Solution

The fourth proportional to 21,250.14, 29,323.11 and 11,818.14 is: 16,307.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.14 : 29,323.11 = 11,818.14 : x
  2. Step 2: Convert to fraction form
    21,250.14/29,323.11 = 11,818.14/x
  3. Step 3: Cross multiply
    21,250.14x = 29,323.11 × 11,818.14
  4. Step 4: Simplify right side
    21,250.14x = 346,544,619.22
  5. Step 5: Solve for x
    x = 346,544,619.22/21,250.14
  6. Step 6: Final answer
    x = 16,307.87

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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.