Home / 20,703.11-31,055.18-7,555.47

Finding the Fourth Proportional to 20,703.11, 31,055.18 and 7,555.47

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Solution

The fourth proportional to 20,703.11, 31,055.18 and 7,555.47 is: 11,333.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703.11 : 31,055.18 = 7,555.47 : x
  2. Step 2: Convert to fraction form
    20,703.11/31,055.18 = 7,555.47/x
  3. Step 3: Cross multiply
    20,703.11x = 31,055.18 × 7,555.47
  4. Step 4: Simplify right side
    20,703.11x = 234,636,443.06
  5. Step 5: Solve for x
    x = 234,636,443.06/20,703.11
  6. Step 6: Final answer
    x = 11,333.39

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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.