Home / 20,716.74-31,058.23-9,630.41

Finding the Fourth Proportional to 20,716.74, 31,058.23 and 9,630.41

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Solution

The fourth proportional to 20,716.74, 31,058.23 and 9,630.41 is: 14,437.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716.74 : 31,058.23 = 9,630.41 : x
  2. Step 2: Convert to fraction form
    20,716.74/31,058.23 = 9,630.41/x
  3. Step 3: Cross multiply
    20,716.74x = 31,058.23 × 9,630.41
  4. Step 4: Simplify right side
    20,716.74x = 299,103,488.77
  5. Step 5: Solve for x
    x = 299,103,488.77/20,716.74
  6. Step 6: Final answer
    x = 14,437.77

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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.