Home / 34,621.12-47,777.34-19,717.12

Finding the Fourth Proportional to 34,621.12, 47,777.34 and 19,717.12

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Solution

The fourth proportional to 34,621.12, 47,777.34 and 19,717.12 is: 27,209.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,621.12 : 47,777.34 = 19,717.12 : x
  2. Step 2: Convert to fraction form
    34,621.12/47,777.34 = 19,717.12/x
  3. Step 3: Cross multiply
    34,621.12x = 47,777.34 × 19,717.12
  4. Step 4: Simplify right side
    34,621.12x = 942,031,546.06
  5. Step 5: Solve for x
    x = 942,031,546.06/34,621.12
  6. Step 6: Final answer
    x = 27,209.74

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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.