Home / 34,271.58-47,275.07-20,121.69

Finding the Fourth Proportional to 34,271.58, 47,275.07 and 20,121.69

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Solution

The fourth proportional to 34,271.58, 47,275.07 and 20,121.69 is: 27,756.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,271.58 : 47,275.07 = 20,121.69 : x
  2. Step 2: Convert to fraction form
    34,271.58/47,275.07 = 20,121.69/x
  3. Step 3: Cross multiply
    34,271.58x = 47,275.07 × 20,121.69
  4. Step 4: Simplify right side
    34,271.58x = 951,254,202.66
  5. Step 5: Solve for x
    x = 951,254,202.66/34,271.58
  6. Step 6: Final answer
    x = 27,756.36

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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.