Home / 20,515.04-30,768.14-6,476.17

Finding the Fourth Proportional to 20,515.04, 30,768.14 and 6,476.17

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Solution

The fourth proportional to 20,515.04, 30,768.14 and 6,476.17 is: 9,712.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515.04 : 30,768.14 = 6,476.17 : x
  2. Step 2: Convert to fraction form
    20,515.04/30,768.14 = 6,476.17/x
  3. Step 3: Cross multiply
    20,515.04x = 30,768.14 × 6,476.17
  4. Step 4: Simplify right side
    20,515.04x = 199,259,670.87
  5. Step 5: Solve for x
    x = 199,259,670.87/20,515.04
  6. Step 6: Final answer
    x = 9,712.86

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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.