Home / 26,781.51-36,959.69-15,297.42

Finding the Fourth Proportional to 26,781.51, 36,959.69 and 15,297.42

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Solution

The fourth proportional to 26,781.51, 36,959.69 and 15,297.42 is: 21,111.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,781.51 : 36,959.69 = 15,297.42 : x
  2. Step 2: Convert to fraction form
    26,781.51/36,959.69 = 15,297.42/x
  3. Step 3: Cross multiply
    26,781.51x = 36,959.69 × 15,297.42
  4. Step 4: Simplify right side
    26,781.51x = 565,387,901.00
  5. Step 5: Solve for x
    x = 565,387,901.00/26,781.51
  6. Step 6: Final answer
    x = 21,111.13

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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.