Home / 30,544.60-42,151.98-18,608.44

Finding the Fourth Proportional to 30,544.60, 42,151.98 and 18,608.44

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Solution

The fourth proportional to 30,544.60, 42,151.98 and 18,608.44 is: 25,679.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,544.60 : 42,151.98 = 18,608.44 : x
  2. Step 2: Convert to fraction form
    30,544.60/42,151.98 = 18,608.44/x
  3. Step 3: Cross multiply
    30,544.60x = 42,151.98 × 18,608.44
  4. Step 4: Simplify right side
    30,544.60x = 784,382,590.71
  5. Step 5: Solve for x
    x = 784,382,590.71/30,544.60
  6. Step 6: Final answer
    x = 25,679.91

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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.