Home / 26,764.51-36,920.14-21,078.31

Finding the Fourth Proportional to 26,764.51, 36,920.14 and 21,078.31

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Solution

The fourth proportional to 26,764.51, 36,920.14 and 21,078.31 is: 29,076.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,764.51 : 36,920.14 = 21,078.31 : x
  2. Step 2: Convert to fraction form
    26,764.51/36,920.14 = 21,078.31/x
  3. Step 3: Cross multiply
    26,764.51x = 36,920.14 × 21,078.31
  4. Step 4: Simplify right side
    26,764.51x = 778,214,156.16
  5. Step 5: Solve for x
    x = 778,214,156.16/26,764.51
  6. Step 6: Final answer
    x = 29,076.35

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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.