Home / 21,017.07-31,460.00-15,083.92

Finding the Fourth Proportional to 21,017.07, 31,460.00 and 15,083.92

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Solution

The fourth proportional to 21,017.07, 31,460.00 and 15,083.92 is: 22,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,017.07 : 31,460.00 = 15,083.92 : x
  2. Step 2: Convert to fraction form
    21,017.07/31,460.00 = 15,083.92/x
  3. Step 3: Cross multiply
    21,017.07x = 31,460.00 × 15,083.92
  4. Step 4: Simplify right side
    21,017.07x = 474,540,087.11
  5. Step 5: Solve for x
    x = 474,540,087.11/21,017.07
  6. Step 6: Final answer
    x = 22,578.79

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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.