Home / 28,908.90-43,368.21-9,185.94

Finding the Fourth Proportional to 28,908.90, 43,368.21 and 9,185.94

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Solution

The fourth proportional to 28,908.90, 43,368.21 and 9,185.94 is: 13,780.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,908.90 : 43,368.21 = 9,185.94 : x
  2. Step 2: Convert to fraction form
    28,908.90/43,368.21 = 9,185.94/x
  3. Step 3: Cross multiply
    28,908.90x = 43,368.21 × 9,185.94
  4. Step 4: Simplify right side
    28,908.90x = 398,377,774.97
  5. Step 5: Solve for x
    x = 398,377,774.97/28,908.90
  6. Step 6: Final answer
    x = 13,780.45

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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.