Home / 26,658.18-36,786.15-15,327.09

Finding the Fourth Proportional to 26,658.18, 36,786.15 and 15,327.09

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Solution

The fourth proportional to 26,658.18, 36,786.15 and 15,327.09 is: 21,150.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,658.18 : 36,786.15 = 15,327.09 : x
  2. Step 2: Convert to fraction form
    26,658.18/36,786.15 = 15,327.09/x
  3. Step 3: Cross multiply
    26,658.18x = 36,786.15 × 15,327.09
  4. Step 4: Simplify right side
    26,658.18x = 563,824,631.80
  5. Step 5: Solve for x
    x = 563,824,631.80/26,658.18
  6. Step 6: Final answer
    x = 21,150.15

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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.