Home / 20,841.13-31,261.56-5,258.77

Finding the Fourth Proportional to 20,841.13, 31,261.56 and 5,258.77

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Solution

The fourth proportional to 20,841.13, 31,261.56 and 5,258.77 is: 7,888.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.13 : 31,261.56 = 5,258.77 : x
  2. Step 2: Convert to fraction form
    20,841.13/31,261.56 = 5,258.77/x
  3. Step 3: Cross multiply
    20,841.13x = 31,261.56 × 5,258.77
  4. Step 4: Simplify right side
    20,841.13x = 164,397,353.88
  5. Step 5: Solve for x
    x = 164,397,353.88/20,841.13
  6. Step 6: Final answer
    x = 7,888.12

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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.