Home / 28,077.81-38,747.16-16,754.61

Finding the Fourth Proportional to 28,077.81, 38,747.16 and 16,754.61

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Solution

The fourth proportional to 28,077.81, 38,747.16 and 16,754.61 is: 23,121.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.81 : 38,747.16 = 16,754.61 : x
  2. Step 2: Convert to fraction form
    28,077.81/38,747.16 = 16,754.61/x
  3. Step 3: Cross multiply
    28,077.81x = 38,747.16 × 16,754.61
  4. Step 4: Simplify right side
    28,077.81x = 649,193,554.41
  5. Step 5: Solve for x
    x = 649,193,554.41/28,077.81
  6. Step 6: Final answer
    x = 23,121.23

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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.