Home / 21,058.24-31,587.29-8,575.49

Finding the Fourth Proportional to 21,058.24, 31,587.29 and 8,575.49

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Solution

The fourth proportional to 21,058.24, 31,587.29 and 8,575.49 is: 12,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.24 : 31,587.29 = 8,575.49 : x
  2. Step 2: Convert to fraction form
    21,058.24/31,587.29 = 8,575.49/x
  3. Step 3: Cross multiply
    21,058.24x = 31,587.29 × 8,575.49
  4. Step 4: Simplify right side
    21,058.24x = 270,876,288.71
  5. Step 5: Solve for x
    x = 270,876,288.71/21,058.24
  6. Step 6: Final answer
    x = 12,863.20

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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.