Home / 34,220.88-47,219.76-20,078.28

Finding the Fourth Proportional to 34,220.88, 47,219.76 and 20,078.28

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Solution

The fourth proportional to 34,220.88, 47,219.76 and 20,078.28 is: 27,705.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,220.88 : 47,219.76 = 20,078.28 : x
  2. Step 2: Convert to fraction form
    34,220.88/47,219.76 = 20,078.28/x
  3. Step 3: Cross multiply
    34,220.88x = 47,219.76 × 20,078.28
  4. Step 4: Simplify right side
    34,220.88x = 948,091,562.81
  5. Step 5: Solve for x
    x = 948,091,562.81/34,220.88
  6. Step 6: Final answer
    x = 27,705.06

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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.