Home / 30,247.71-41,735.37-20,560.53

Finding the Fourth Proportional to 30,247.71, 41,735.37 and 20,560.53

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Solution

The fourth proportional to 30,247.71, 41,735.37 and 20,560.53 is: 28,369.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,247.71 : 41,735.37 = 20,560.53 : x
  2. Step 2: Convert to fraction form
    30,247.71/41,735.37 = 20,560.53/x
  3. Step 3: Cross multiply
    30,247.71x = 41,735.37 × 20,560.53
  4. Step 4: Simplify right side
    30,247.71x = 858,101,326.95
  5. Step 5: Solve for x
    x = 858,101,326.95/30,247.71
  6. Step 6: Final answer
    x = 28,369.13

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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.