Home / 28,449.54-39,251.87-18,368.77

Finding the Fourth Proportional to 28,449.54, 39,251.87 and 18,368.77

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Solution

The fourth proportional to 28,449.54, 39,251.87 and 18,368.77 is: 25,343.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449.54 : 39,251.87 = 18,368.77 : x
  2. Step 2: Convert to fraction form
    28,449.54/39,251.87 = 18,368.77/x
  3. Step 3: Cross multiply
    28,449.54x = 39,251.87 × 18,368.77
  4. Step 4: Simplify right side
    28,449.54x = 721,008,572.10
  5. Step 5: Solve for x
    x = 721,008,572.10/28,449.54
  6. Step 6: Final answer
    x = 25,343.42

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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.