Home / 20,377.31-30,563.34-7,888.77

Finding the Fourth Proportional to 20,377.31, 30,563.34 and 7,888.77

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Solution

The fourth proportional to 20,377.31, 30,563.34 and 7,888.77 is: 11,832.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,377.31 : 30,563.34 = 7,888.77 : x
  2. Step 2: Convert to fraction form
    20,377.31/30,563.34 = 7,888.77/x
  3. Step 3: Cross multiply
    20,377.31x = 30,563.34 × 7,888.77
  4. Step 4: Simplify right side
    20,377.31x = 241,107,159.69
  5. Step 5: Solve for x
    x = 241,107,159.69/20,377.31
  6. Step 6: Final answer
    x = 11,832.14

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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.