Home / 26,291.36-36,261.60-15,678.74

Finding the Fourth Proportional to 26,291.36, 36,261.60 and 15,678.74

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Solution

The fourth proportional to 26,291.36, 36,261.60 and 15,678.74 is: 21,624.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,291.36 : 36,261.60 = 15,678.74 : x
  2. Step 2: Convert to fraction form
    26,291.36/36,261.60 = 15,678.74/x
  3. Step 3: Cross multiply
    26,291.36x = 36,261.60 × 15,678.74
  4. Step 4: Simplify right side
    26,291.36x = 568,536,198.38
  5. Step 5: Solve for x
    x = 568,536,198.38/26,291.36
  6. Step 6: Final answer
    x = 21,624.45

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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.