Home / 15,161.60-22,678.40-13,612.80

Finding the Fourth Proportional to 15,161.60, 22,678.40 and 13,612.80

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Solution

The fourth proportional to 15,161.60, 22,678.40 and 13,612.80 is: 20,361.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,161.60 : 22,678.40 = 13,612.80 : x
  2. Step 2: Convert to fraction form
    15,161.60/22,678.40 = 13,612.80/x
  3. Step 3: Cross multiply
    15,161.60x = 22,678.40 × 13,612.80
  4. Step 4: Simplify right side
    15,161.60x = 308,716,523.52
  5. Step 5: Solve for x
    x = 308,716,523.52/15,161.60
  6. Step 6: Final answer
    x = 20,361.74

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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.