Home / 21,013.26-28,998.96-12,062.58

Finding the Fourth Proportional to 21,013.26, 28,998.96 and 12,062.58

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Solution

The fourth proportional to 21,013.26, 28,998.96 and 12,062.58 is: 16,646.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,013.26 : 28,998.96 = 12,062.58 : x
  2. Step 2: Convert to fraction form
    21,013.26/28,998.96 = 12,062.58/x
  3. Step 3: Cross multiply
    21,013.26x = 28,998.96 × 12,062.58
  4. Step 4: Simplify right side
    21,013.26x = 349,802,274.92
  5. Step 5: Solve for x
    x = 349,802,274.92/21,013.26
  6. Step 6: Final answer
    x = 16,646.74

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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.