Home / 23,211.50-32,016.48-15,555

Finding the Fourth Proportional to 23,211.50, 32,016.48 and 15,555

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Solution

The fourth proportional to 23,211.50, 32,016.48 and 15,555 is: 21,455.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,211.50 : 32,016.48 = 15,555 : x
  2. Step 2: Convert to fraction form
    23,211.50/32,016.48 = 15,555/x
  3. Step 3: Cross multiply
    23,211.50x = 32,016.48 × 15,555
  4. Step 4: Simplify right side
    23,211.50x = 498,016,346.40
  5. Step 5: Solve for x
    x = 498,016,346.40/23,211.50
  6. Step 6: Final answer
    x = 21,455.59

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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.