Home / 20,713.09-31,052.19-9,017.50

Finding the Fourth Proportional to 20,713.09, 31,052.19 and 9,017.50

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Solution

The fourth proportional to 20,713.09, 31,052.19 and 9,017.50 is: 13,518.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.09 : 31,052.19 = 9,017.50 : x
  2. Step 2: Convert to fraction form
    20,713.09/31,052.19 = 9,017.50/x
  3. Step 3: Cross multiply
    20,713.09x = 31,052.19 × 9,017.50
  4. Step 4: Simplify right side
    20,713.09x = 280,013,123.33
  5. Step 5: Solve for x
    x = 280,013,123.33/20,713.09
  6. Step 6: Final answer
    x = 13,518.66

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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.