Home / 18,617.19-27,875.98-15,664.75

Finding the Fourth Proportional to 18,617.19, 27,875.98 and 15,664.75

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Solution

The fourth proportional to 18,617.19, 27,875.98 and 15,664.75 is: 23,455.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.19 : 27,875.98 = 15,664.75 : x
  2. Step 2: Convert to fraction form
    18,617.19/27,875.98 = 15,664.75/x
  3. Step 3: Cross multiply
    18,617.19x = 27,875.98 × 15,664.75
  4. Step 4: Simplify right side
    18,617.19x = 436,670,179.38
  5. Step 5: Solve for x
    x = 436,670,179.38/18,617.19
  6. Step 6: Final answer
    x = 23,455.21

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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.