Home / 26,795.45-36,935.10-21,120.99

Finding the Fourth Proportional to 26,795.45, 36,935.10 and 21,120.99

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Solution

The fourth proportional to 26,795.45, 36,935.10 and 21,120.99 is: 29,113.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,795.45 : 36,935.10 = 21,120.99 : x
  2. Step 2: Convert to fraction form
    26,795.45/36,935.10 = 21,120.99/x
  3. Step 3: Cross multiply
    26,795.45x = 36,935.10 × 21,120.99
  4. Step 4: Simplify right side
    26,795.45x = 780,105,877.75
  5. Step 5: Solve for x
    x = 780,105,877.75/26,795.45
  6. Step 6: Final answer
    x = 29,113.38

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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.