Home / 34,356.26-47,420.97-20,213.66

Finding the Fourth Proportional to 34,356.26, 47,420.97 and 20,213.66

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Solution

The fourth proportional to 34,356.26, 47,420.97 and 20,213.66 is: 27,900.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,356.26 : 47,420.97 = 20,213.66 : x
  2. Step 2: Convert to fraction form
    34,356.26/47,420.97 = 20,213.66/x
  3. Step 3: Cross multiply
    34,356.26x = 47,420.97 × 20,213.66
  4. Step 4: Simplify right side
    34,356.26x = 958,551,364.45
  5. Step 5: Solve for x
    x = 958,551,364.45/34,356.26
  6. Step 6: Final answer
    x = 27,900.34

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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.