Home / 28,249.28-38,982.40-16,316.32

Finding the Fourth Proportional to 28,249.28, 38,982.40 and 16,316.32

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Solution

The fourth proportional to 28,249.28, 38,982.40 and 16,316.32 is: 22,515.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,249.28 : 38,982.40 = 16,316.32 : x
  2. Step 2: Convert to fraction form
    28,249.28/38,982.40 = 16,316.32/x
  3. Step 3: Cross multiply
    28,249.28x = 38,982.40 × 16,316.32
  4. Step 4: Simplify right side
    28,249.28x = 636,049,312.77
  5. Step 5: Solve for x
    x = 636,049,312.77/28,249.28
  6. Step 6: Final answer
    x = 22,515.59

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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.