Home / 20,568.60-28,377.74-13,395.24

Finding the Fourth Proportional to 20,568.60, 28,377.74 and 13,395.24

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Solution

The fourth proportional to 20,568.60, 28,377.74 and 13,395.24 is: 18,480.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,568.60 : 28,377.74 = 13,395.24 : x
  2. Step 2: Convert to fraction form
    20,568.60/28,377.74 = 13,395.24/x
  3. Step 3: Cross multiply
    20,568.60x = 28,377.74 × 13,395.24
  4. Step 4: Simplify right side
    20,568.60x = 380,126,671.45
  5. Step 5: Solve for x
    x = 380,126,671.45/20,568.60
  6. Step 6: Final answer
    x = 18,480.92

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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.