Home / 25,558.79-38,287.13-20,302.70

Finding the Fourth Proportional to 25,558.79, 38,287.13 and 20,302.70

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Solution

The fourth proportional to 25,558.79, 38,287.13 and 20,302.70 is: 30,413.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,558.79 : 38,287.13 = 20,302.70 : x
  2. Step 2: Convert to fraction form
    25,558.79/38,287.13 = 20,302.70/x
  3. Step 3: Cross multiply
    25,558.79x = 38,287.13 × 20,302.70
  4. Step 4: Simplify right side
    25,558.79x = 777,331,821.30
  5. Step 5: Solve for x
    x = 777,331,821.30/25,558.79
  6. Step 6: Final answer
    x = 30,413.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.