Home / 28,912.48-43,368.21-11,151.65

Finding the Fourth Proportional to 28,912.48, 43,368.21 and 11,151.65

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Solution

The fourth proportional to 28,912.48, 43,368.21 and 11,151.65 is: 16,727.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,912.48 : 43,368.21 = 11,151.65 : x
  2. Step 2: Convert to fraction form
    28,912.48/43,368.21 = 11,151.65/x
  3. Step 3: Cross multiply
    28,912.48x = 43,368.21 × 11,151.65
  4. Step 4: Simplify right side
    28,912.48x = 483,627,085.49
  5. Step 5: Solve for x
    x = 483,627,085.49/28,912.48
  6. Step 6: Final answer
    x = 16,727.28

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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.