Home / 20,515.97-30,775.46-7,368.45

Finding the Fourth Proportional to 20,515.97, 30,775.46 and 7,368.45

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Solution

The fourth proportional to 20,515.97, 30,775.46 and 7,368.45 is: 11,053.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515.97 : 30,775.46 = 7,368.45 : x
  2. Step 2: Convert to fraction form
    20,515.97/30,775.46 = 7,368.45/x
  3. Step 3: Cross multiply
    20,515.97x = 30,775.46 × 7,368.45
  4. Step 4: Simplify right side
    20,515.97x = 226,767,438.24
  5. Step 5: Solve for x
    x = 226,767,438.24/20,515.97
  6. Step 6: Final answer
    x = 11,053.22

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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.