Home / 28,342.05-42,494.84-13,550.64

Finding the Fourth Proportional to 28,342.05, 42,494.84 and 13,550.64

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Solution

The fourth proportional to 28,342.05, 42,494.84 and 13,550.64 is: 20,317.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342.05 : 42,494.84 = 13,550.64 : x
  2. Step 2: Convert to fraction form
    28,342.05/42,494.84 = 13,550.64/x
  3. Step 3: Cross multiply
    28,342.05x = 42,494.84 × 13,550.64
  4. Step 4: Simplify right side
    28,342.05x = 575,832,278.70
  5. Step 5: Solve for x
    x = 575,832,278.70/28,342.05
  6. Step 6: Final answer
    x = 20,317.24

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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.