Home / 20,702.19-31,053.79-7,554.56

Finding the Fourth Proportional to 20,702.19, 31,053.79 and 7,554.56

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Solution

The fourth proportional to 20,702.19, 31,053.79 and 7,554.56 is: 11,332.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702.19 : 31,053.79 = 7,554.56 : x
  2. Step 2: Convert to fraction form
    20,702.19/31,053.79 = 7,554.56/x
  3. Step 3: Cross multiply
    20,702.19x = 31,053.79 × 7,554.56
  4. Step 4: Simplify right side
    20,702.19x = 234,597,564.51
  5. Step 5: Solve for x
    x = 234,597,564.51/20,702.19
  6. Step 6: Final answer
    x = 11,332.02

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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.