Home / 20,841.29-31,261.97-5,258.91

Finding the Fourth Proportional to 20,841.29, 31,261.97 and 5,258.91

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Solution

The fourth proportional to 20,841.29, 31,261.97 and 5,258.91 is: 7,888.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.29 : 31,261.97 = 5,258.91 : x
  2. Step 2: Convert to fraction form
    20,841.29/31,261.97 = 5,258.91/x
  3. Step 3: Cross multiply
    20,841.29x = 31,261.97 × 5,258.91
  4. Step 4: Simplify right side
    20,841.29x = 164,403,899.80
  5. Step 5: Solve for x
    x = 164,403,899.80/20,841.29
  6. Step 6: Final answer
    x = 7,888.38

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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.