Home / 28,161.41-42,232.39-13,360.28

Finding the Fourth Proportional to 28,161.41, 42,232.39 and 13,360.28

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Solution

The fourth proportional to 28,161.41, 42,232.39 and 13,360.28 is: 20,035.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161.41 : 42,232.39 = 13,360.28 : x
  2. Step 2: Convert to fraction form
    28,161.41/42,232.39 = 13,360.28/x
  3. Step 3: Cross multiply
    28,161.41x = 42,232.39 × 13,360.28
  4. Step 4: Simplify right side
    28,161.41x = 564,236,555.47
  5. Step 5: Solve for x
    x = 564,236,555.47/28,161.41
  6. Step 6: Final answer
    x = 20,035.81

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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.