Home / 20,251.63-30,374.37-7,777.53

Finding the Fourth Proportional to 20,251.63, 30,374.37 and 7,777.53

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Solution

The fourth proportional to 20,251.63, 30,374.37 and 7,777.53 is: 11,665.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.63 : 30,374.37 = 7,777.53 : x
  2. Step 2: Convert to fraction form
    20,251.63/30,374.37 = 7,777.53/x
  3. Step 3: Cross multiply
    20,251.63x = 30,374.37 × 7,777.53
  4. Step 4: Simplify right side
    20,251.63x = 236,237,573.91
  5. Step 5: Solve for x
    x = 236,237,573.91/20,251.63
  6. Step 6: Final answer
    x = 11,665.11

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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.