Home / 28,677.79-39,559.31-18,048.97

Finding the Fourth Proportional to 28,677.79, 39,559.31 and 18,048.97

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Solution

The fourth proportional to 28,677.79, 39,559.31 and 18,048.97 is: 24,897.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677.79 : 39,559.31 = 18,048.97 : x
  2. Step 2: Convert to fraction form
    28,677.79/39,559.31 = 18,048.97/x
  3. Step 3: Cross multiply
    28,677.79x = 39,559.31 × 18,048.97
  4. Step 4: Simplify right side
    28,677.79x = 714,004,610.27
  5. Step 5: Solve for x
    x = 714,004,610.27/28,677.79
  6. Step 6: Final answer
    x = 24,897.48

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Double scale
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Similar ratio
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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.