Home / 28,079.49-38,751.28-15,333.86

Finding the Fourth Proportional to 28,079.49, 38,751.28 and 15,333.86

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Solution

The fourth proportional to 28,079.49, 38,751.28 and 15,333.86 is: 21,161.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,079.49 : 38,751.28 = 15,333.86 : x
  2. Step 2: Convert to fraction form
    28,079.49/38,751.28 = 15,333.86/x
  3. Step 3: Cross multiply
    28,079.49x = 38,751.28 × 15,333.86
  4. Step 4: Simplify right side
    28,079.49x = 594,206,847.14
  5. Step 5: Solve for x
    x = 594,206,847.14/28,079.49
  6. Step 6: Final answer
    x = 21,161.59

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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.