Home / 20,844.74-31,267.58-7,518.80

Finding the Fourth Proportional to 20,844.74, 31,267.58 and 7,518.80

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Solution

The fourth proportional to 20,844.74, 31,267.58 and 7,518.80 is: 11,278.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.74 : 31,267.58 = 7,518.80 : x
  2. Step 2: Convert to fraction form
    20,844.74/31,267.58 = 7,518.80/x
  3. Step 3: Cross multiply
    20,844.74x = 31,267.58 × 7,518.80
  4. Step 4: Simplify right side
    20,844.74x = 235,094,721.08
  5. Step 5: Solve for x
    x = 235,094,721.08/20,844.74
  6. Step 6: Final answer
    x = 11,278.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.