Home / 20,014.09-27,605.15-15,290.17

Finding the Fourth Proportional to 20,014.09, 27,605.15 and 15,290.17

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Solution

The fourth proportional to 20,014.09, 27,605.15 and 15,290.17 is: 21,089.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,014.09 : 27,605.15 = 15,290.17 : x
  2. Step 2: Convert to fraction form
    20,014.09/27,605.15 = 15,290.17/x
  3. Step 3: Cross multiply
    20,014.09x = 27,605.15 × 15,290.17
  4. Step 4: Simplify right side
    20,014.09x = 422,087,359.92
  5. Step 5: Solve for x
    x = 422,087,359.92/20,014.09
  6. Step 6: Final answer
    x = 21,089.51

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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.