Home / 30,576.14-42,177.15-19,227.63

Finding the Fourth Proportional to 30,576.14, 42,177.15 and 19,227.63

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Solution

The fourth proportional to 30,576.14, 42,177.15 and 19,227.63 is: 26,522.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,576.14 : 42,177.15 = 19,227.63 : x
  2. Step 2: Convert to fraction form
    30,576.14/42,177.15 = 19,227.63/x
  3. Step 3: Cross multiply
    30,576.14x = 42,177.15 × 19,227.63
  4. Step 4: Simplify right side
    30,576.14x = 810,966,634.65
  5. Step 5: Solve for x
    x = 810,966,634.65/30,576.14
  6. Step 6: Final answer
    x = 26,522.86

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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.