Home / 34,548.59-47,689.36-20,401.49

Finding the Fourth Proportional to 34,548.59, 47,689.36 and 20,401.49

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Solution

The fourth proportional to 34,548.59, 47,689.36 and 20,401.49 is: 28,161.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,548.59 : 47,689.36 = 20,401.49 : x
  2. Step 2: Convert to fraction form
    34,548.59/47,689.36 = 20,401.49/x
  3. Step 3: Cross multiply
    34,548.59x = 47,689.36 × 20,401.49
  4. Step 4: Simplify right side
    34,548.59x = 972,933,711.70
  5. Step 5: Solve for x
    x = 972,933,711.70/34,548.59
  6. Step 6: Final answer
    x = 28,161.32

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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.