Home / 30,815.44-42,532.28-25,770.88

Finding the Fourth Proportional to 30,815.44, 42,532.28 and 25,770.88

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Solution

The fourth proportional to 30,815.44, 42,532.28 and 25,770.88 is: 35,569.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,815.44 : 42,532.28 = 25,770.88 : x
  2. Step 2: Convert to fraction form
    30,815.44/42,532.28 = 25,770.88/x
  3. Step 3: Cross multiply
    30,815.44x = 42,532.28 × 25,770.88
  4. Step 4: Simplify right side
    30,815.44x = 1,096,094,284.01
  5. Step 5: Solve for x
    x = 1,096,094,284.01/30,815.44
  6. Step 6: Final answer
    x = 35,569.65

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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.