Home / 26,791.70-36,929.93-21,117.24

Finding the Fourth Proportional to 26,791.70, 36,929.93 and 21,117.24

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Solution

The fourth proportional to 26,791.70, 36,929.93 and 21,117.24 is: 29,108.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,791.70 : 36,929.93 = 21,117.24 : x
  2. Step 2: Convert to fraction form
    26,791.70/36,929.93 = 21,117.24/x
  3. Step 3: Cross multiply
    26,791.70x = 36,929.93 × 21,117.24
  4. Step 4: Simplify right side
    26,791.70x = 779,858,089.41
  5. Step 5: Solve for x
    x = 779,858,089.41/26,791.70
  6. Step 6: Final answer
    x = 29,108.20

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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.