Home / 34,763.78-47,997.06-20,621.18

Finding the Fourth Proportional to 34,763.78, 47,997.06 and 20,621.18

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Solution

The fourth proportional to 34,763.78, 47,997.06 and 20,621.18 is: 28,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,763.78 : 47,997.06 = 20,621.18 : x
  2. Step 2: Convert to fraction form
    34,763.78/47,997.06 = 20,621.18/x
  3. Step 3: Cross multiply
    34,763.78x = 47,997.06 × 20,621.18
  4. Step 4: Simplify right side
    34,763.78x = 989,756,056.39
  5. Step 5: Solve for x
    x = 989,756,056.39/34,763.78
  6. Step 6: Final answer
    x = 28,470.90

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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.