Home / 18,289.62-27,382.15-13,631.31

Finding the Fourth Proportional to 18,289.62, 27,382.15 and 13,631.31

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Solution

The fourth proportional to 18,289.62, 27,382.15 and 13,631.31 is: 20,408.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.62 : 27,382.15 = 13,631.31 : x
  2. Step 2: Convert to fraction form
    18,289.62/27,382.15 = 13,631.31/x
  3. Step 3: Cross multiply
    18,289.62x = 27,382.15 × 13,631.31
  4. Step 4: Simplify right side
    18,289.62x = 373,254,669.17
  5. Step 5: Solve for x
    x = 373,254,669.17/18,289.62
  6. Step 6: Final answer
    x = 20,408.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.