Home / 39,401.22-54,393.75-30,428.58

Finding the Fourth Proportional to 39,401.22, 54,393.75 and 30,428.58

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Solution

The fourth proportional to 39,401.22, 54,393.75 and 30,428.58 is: 42,006.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,401.22 : 54,393.75 = 30,428.58 : x
  2. Step 2: Convert to fraction form
    39,401.22/54,393.75 = 30,428.58/x
  3. Step 3: Cross multiply
    39,401.22x = 54,393.75 × 30,428.58
  4. Step 4: Simplify right side
    39,401.22x = 1,655,124,573.38
  5. Step 5: Solve for x
    x = 1,655,124,573.38/39,401.22
  6. Step 6: Final answer
    x = 42,006.94

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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.