Home / 30,199.28-41,679.78-28,870.52

Finding the Fourth Proportional to 30,199.28, 41,679.78 and 28,870.52

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Solution

The fourth proportional to 30,199.28, 41,679.78 and 28,870.52 is: 39,845.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,199.28 : 41,679.78 = 28,870.52 : x
  2. Step 2: Convert to fraction form
    30,199.28/41,679.78 = 28,870.52/x
  3. Step 3: Cross multiply
    30,199.28x = 41,679.78 × 28,870.52
  4. Step 4: Simplify right side
    30,199.28x = 1,203,316,922.09
  5. Step 5: Solve for x
    x = 1,203,316,922.09/30,199.28
  6. Step 6: Final answer
    x = 39,845.88

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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.