Home / 21,236.68-29,315.52-14,339.13

Finding the Fourth Proportional to 21,236.68, 29,315.52 and 14,339.13

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Solution

The fourth proportional to 21,236.68, 29,315.52 and 14,339.13 is: 19,794.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,236.68 : 29,315.52 = 14,339.13 : x
  2. Step 2: Convert to fraction form
    21,236.68/29,315.52 = 14,339.13/x
  3. Step 3: Cross multiply
    21,236.68x = 29,315.52 × 14,339.13
  4. Step 4: Simplify right side
    21,236.68x = 420,358,942.36
  5. Step 5: Solve for x
    x = 420,358,942.36/21,236.68
  6. Step 6: Final answer
    x = 19,794.00

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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.