Home / 28,116.47-38,785.67-18,546.89

Finding the Fourth Proportional to 28,116.47, 38,785.67 and 18,546.89

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Solution

The fourth proportional to 28,116.47, 38,785.67 and 18,546.89 is: 25,584.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.47 : 38,785.67 = 18,546.89 : x
  2. Step 2: Convert to fraction form
    28,116.47/38,785.67 = 18,546.89/x
  3. Step 3: Cross multiply
    28,116.47x = 38,785.67 × 18,546.89
  4. Step 4: Simplify right side
    28,116.47x = 719,353,462.33
  5. Step 5: Solve for x
    x = 719,353,462.33/28,116.47
  6. Step 6: Final answer
    x = 25,584.77

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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.