Home / 28,908.90-43,334.55-13,299.30

Finding the Fourth Proportional to 28,908.90, 43,334.55 and 13,299.30

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Solution

The fourth proportional to 28,908.90, 43,334.55 and 13,299.30 is: 19,935.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,908.90 : 43,334.55 = 13,299.30 : x
  2. Step 2: Convert to fraction form
    28,908.90/43,334.55 = 13,299.30/x
  3. Step 3: Cross multiply
    28,908.90x = 43,334.55 × 13,299.30
  4. Step 4: Simplify right side
    28,908.90x = 576,319,180.82
  5. Step 5: Solve for x
    x = 576,319,180.82/28,908.90
  6. Step 6: Final answer
    x = 19,935.70

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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.