Home / 30,576.29-42,177.36-19,227.79

Finding the Fourth Proportional to 30,576.29, 42,177.36 and 19,227.79

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Solution

The fourth proportional to 30,576.29, 42,177.36 and 19,227.79 is: 26,523.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,576.29 : 42,177.36 = 19,227.79 : x
  2. Step 2: Convert to fraction form
    30,576.29/42,177.36 = 19,227.79/x
  3. Step 3: Cross multiply
    30,576.29x = 42,177.36 × 19,227.79
  4. Step 4: Simplify right side
    30,576.29x = 810,977,315.39
  5. Step 5: Solve for x
    x = 810,977,315.39/30,576.29
  6. Step 6: Final answer
    x = 26,523.08

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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.