Home / 26,396.73-36,438.89-15,784.34

Finding the Fourth Proportional to 26,396.73, 36,438.89 and 15,784.34

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Solution

The fourth proportional to 26,396.73, 36,438.89 and 15,784.34 is: 21,789.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,396.73 : 36,438.89 = 15,784.34 : x
  2. Step 2: Convert to fraction form
    26,396.73/36,438.89 = 15,784.34/x
  3. Step 3: Cross multiply
    26,396.73x = 36,438.89 × 15,784.34
  4. Step 4: Simplify right side
    26,396.73x = 575,163,567.87
  5. Step 5: Solve for x
    x = 575,163,567.87/26,396.73
  6. Step 6: Final answer
    x = 21,789.20

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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.