Home / 26,189.87-36,139.08-15,434.06

Finding the Fourth Proportional to 26,189.87, 36,139.08 and 15,434.06

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Solution

The fourth proportional to 26,189.87, 36,139.08 and 15,434.06 is: 21,297.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,189.87 : 36,139.08 = 15,434.06 : x
  2. Step 2: Convert to fraction form
    26,189.87/36,139.08 = 15,434.06/x
  3. Step 3: Cross multiply
    26,189.87x = 36,139.08 × 15,434.06
  4. Step 4: Simplify right side
    26,189.87x = 557,772,548.37
  5. Step 5: Solve for x
    x = 557,772,548.37/26,189.87
  6. Step 6: Final answer
    x = 21,297.27

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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.