Home / 20,773.85-31,159.74-7,625.22

Finding the Fourth Proportional to 20,773.85, 31,159.74 and 7,625.22

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Solution

The fourth proportional to 20,773.85, 31,159.74 and 7,625.22 is: 11,437.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.85 : 31,159.74 = 7,625.22 : x
  2. Step 2: Convert to fraction form
    20,773.85/31,159.74 = 7,625.22/x
  3. Step 3: Cross multiply
    20,773.85x = 31,159.74 × 7,625.22
  4. Step 4: Simplify right side
    20,773.85x = 237,599,872.64
  5. Step 5: Solve for x
    x = 237,599,872.64/20,773.85
  6. Step 6: Final answer
    x = 11,437.45

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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.