Home / 26,477.70-36,571.14-21,118.74

Finding the Fourth Proportional to 26,477.70, 36,571.14 and 21,118.74

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Solution

The fourth proportional to 26,477.70, 36,571.14 and 21,118.74 is: 29,169.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,477.70 : 36,571.14 = 21,118.74 : x
  2. Step 2: Convert to fraction form
    26,477.70/36,571.14 = 21,118.74/x
  3. Step 3: Cross multiply
    26,477.70x = 36,571.14 × 21,118.74
  4. Step 4: Simplify right side
    26,477.70x = 772,336,397.16
  5. Step 5: Solve for x
    x = 772,336,397.16/26,477.70
  6. Step 6: Final answer
    x = 29,169.32

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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.