Home / 28,927.62-43,341.89-15,789.21

Finding the Fourth Proportional to 28,927.62, 43,341.89 and 15,789.21

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Solution

The fourth proportional to 28,927.62, 43,341.89 and 15,789.21 is: 23,656.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,927.62 : 43,341.89 = 15,789.21 : x
  2. Step 2: Convert to fraction form
    28,927.62/43,341.89 = 15,789.21/x
  3. Step 3: Cross multiply
    28,927.62x = 43,341.89 × 15,789.21
  4. Step 4: Simplify right side
    28,927.62x = 684,334,203.01
  5. Step 5: Solve for x
    x = 684,334,203.01/28,927.62
  6. Step 6: Final answer
    x = 23,656.78

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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.