Home / 30,125.15-41,576.55-21,504.71

Finding the Fourth Proportional to 30,125.15, 41,576.55 and 21,504.71

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Solution

The fourth proportional to 30,125.15, 41,576.55 and 21,504.71 is: 29,679.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,125.15 : 41,576.55 = 21,504.71 : x
  2. Step 2: Convert to fraction form
    30,125.15/41,576.55 = 21,504.71/x
  3. Step 3: Cross multiply
    30,125.15x = 41,576.55 × 21,504.71
  4. Step 4: Simplify right side
    30,125.15x = 894,091,650.55
  5. Step 5: Solve for x
    x = 894,091,650.55/30,125.15
  6. Step 6: Final answer
    x = 29,679.24

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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.