Home / 25,979.90-35,847.70-15,365.66

Finding the Fourth Proportional to 25,979.90, 35,847.70 and 15,365.66

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Solution

The fourth proportional to 25,979.90, 35,847.70 and 15,365.66 is: 21,201.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,979.90 : 35,847.70 = 15,365.66 : x
  2. Step 2: Convert to fraction form
    25,979.90/35,847.70 = 15,365.66/x
  3. Step 3: Cross multiply
    25,979.90x = 35,847.70 × 15,365.66
  4. Step 4: Simplify right side
    25,979.90x = 550,823,569.98
  5. Step 5: Solve for x
    x = 550,823,569.98/25,979.90
  6. Step 6: Final answer
    x = 21,201.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.