Home / 26,870.70-37,080.39-15,538.38

Finding the Fourth Proportional to 26,870.70, 37,080.39 and 15,538.38

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Solution

The fourth proportional to 26,870.70, 37,080.39 and 15,538.38 is: 21,442.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,870.70 : 37,080.39 = 15,538.38 : x
  2. Step 2: Convert to fraction form
    26,870.70/37,080.39 = 15,538.38/x
  3. Step 3: Cross multiply
    26,870.70x = 37,080.39 × 15,538.38
  4. Step 4: Simplify right side
    26,870.70x = 576,169,190.37
  5. Step 5: Solve for x
    x = 576,169,190.37/26,870.70
  6. Step 6: Final answer
    x = 21,442.28

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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.