Home / 18,351.04-25,313.16-15,998.80

Finding the Fourth Proportional to 18,351.04, 25,313.16 and 15,998.80

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Solution

The fourth proportional to 18,351.04, 25,313.16 and 15,998.80 is: 22,068.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,351.04 : 25,313.16 = 15,998.80 : x
  2. Step 2: Convert to fraction form
    18,351.04/25,313.16 = 15,998.80/x
  3. Step 3: Cross multiply
    18,351.04x = 25,313.16 × 15,998.80
  4. Step 4: Simplify right side
    18,351.04x = 404,980,184.21
  5. Step 5: Solve for x
    x = 404,980,184.21/18,351.04
  6. Step 6: Final answer
    x = 22,068.51

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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.