Home / 26,186.09-36,130.51-15,431.41

Finding the Fourth Proportional to 26,186.09, 36,130.51 and 15,431.41

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Solution

The fourth proportional to 26,186.09, 36,130.51 and 15,431.41 is: 21,291.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,186.09 : 36,130.51 = 15,431.41 : x
  2. Step 2: Convert to fraction form
    26,186.09/36,130.51 = 15,431.41/x
  3. Step 3: Cross multiply
    26,186.09x = 36,130.51 × 15,431.41
  4. Step 4: Simplify right side
    26,186.09x = 557,544,455.51
  5. Step 5: Solve for x
    x = 557,544,455.51/26,186.09
  6. Step 6: Final answer
    x = 21,291.63

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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.