Home / 25,880.20-38,820.30-10,297.80

Finding the Fourth Proportional to 25,880.20, 38,820.30 and 10,297.80

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Solution

The fourth proportional to 25,880.20, 38,820.30 and 10,297.80 is: 15,446.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,880.20 : 38,820.30 = 10,297.80 : x
  2. Step 2: Convert to fraction form
    25,880.20/38,820.30 = 10,297.80/x
  3. Step 3: Cross multiply
    25,880.20x = 38,820.30 × 10,297.80
  4. Step 4: Simplify right side
    25,880.20x = 399,763,685.34
  5. Step 5: Solve for x
    x = 399,763,685.34/25,880.20
  6. Step 6: Final answer
    x = 15,446.70

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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.