Home / 25,920.27-35,763.93-15,311.49

Finding the Fourth Proportional to 25,920.27, 35,763.93 and 15,311.49

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Solution

The fourth proportional to 25,920.27, 35,763.93 and 15,311.49 is: 21,126.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920.27 : 35,763.93 = 15,311.49 : x
  2. Step 2: Convert to fraction form
    25,920.27/35,763.93 = 15,311.49/x
  3. Step 3: Cross multiply
    25,920.27x = 35,763.93 × 15,311.49
  4. Step 4: Simplify right side
    25,920.27x = 547,599,056.56
  5. Step 5: Solve for x
    x = 547,599,056.56/25,920.27
  6. Step 6: Final answer
    x = 21,126.29

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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.