Home / 30,850.20-42,575.79-17,424.72

Finding the Fourth Proportional to 30,850.20, 42,575.79 and 17,424.72

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Solution

The fourth proportional to 30,850.20, 42,575.79 and 17,424.72 is: 24,047.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,850.20 : 42,575.79 = 17,424.72 : x
  2. Step 2: Convert to fraction form
    30,850.20/42,575.79 = 17,424.72/x
  3. Step 3: Cross multiply
    30,850.20x = 42,575.79 × 17,424.72
  4. Step 4: Simplify right side
    30,850.20x = 741,871,219.53
  5. Step 5: Solve for x
    x = 741,871,219.53/30,850.20
  6. Step 6: Final answer
    x = 24,047.53

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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.