Home / 20,853.28-31,279.66-5,058.44

Finding the Fourth Proportional to 20,853.28, 31,279.66 and 5,058.44

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Solution

The fourth proportional to 20,853.28, 31,279.66 and 5,058.44 is: 7,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853.28 : 31,279.66 = 5,058.44 : x
  2. Step 2: Convert to fraction form
    20,853.28/31,279.66 = 5,058.44/x
  3. Step 3: Cross multiply
    20,853.28x = 31,279.66 × 5,058.44
  4. Step 4: Simplify right side
    20,853.28x = 158,226,283.33
  5. Step 5: Solve for x
    x = 158,226,283.33/20,853.28
  6. Step 6: Final answer
    x = 7,587.60

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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.