Home / 29,315.16-43,972.14-7,128.66

Finding the Fourth Proportional to 29,315.16, 43,972.14 and 7,128.66

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Solution

The fourth proportional to 29,315.16, 43,972.14 and 7,128.66 is: 10,692.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,315.16 : 43,972.14 = 7,128.66 : x
  2. Step 2: Convert to fraction form
    29,315.16/43,972.14 = 7,128.66/x
  3. Step 3: Cross multiply
    29,315.16x = 43,972.14 × 7,128.66
  4. Step 4: Simplify right side
    29,315.16x = 313,462,435.53
  5. Step 5: Solve for x
    x = 313,462,435.53/29,315.16
  6. Step 6: Final answer
    x = 10,692.84

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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.