Home / 34,743.52-47,943.96-20,401.28

Finding the Fourth Proportional to 34,743.52, 47,943.96 and 20,401.28

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Solution

The fourth proportional to 34,743.52, 47,943.96 and 20,401.28 is: 28,152.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,743.52 : 47,943.96 = 20,401.28 : x
  2. Step 2: Convert to fraction form
    34,743.52/47,943.96 = 20,401.28/x
  3. Step 3: Cross multiply
    34,743.52x = 47,943.96 × 20,401.28
  4. Step 4: Simplify right side
    34,743.52x = 978,118,152.27
  5. Step 5: Solve for x
    x = 978,118,152.27/34,743.52
  6. Step 6: Final answer
    x = 28,152.53

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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.