Home / 20,258.80-27,953.58-11,305.60

Finding the Fourth Proportional to 20,258.80, 27,953.58 and 11,305.60

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Solution

The fourth proportional to 20,258.80, 27,953.58 and 11,305.60 is: 15,599.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,258.80 : 27,953.58 = 11,305.60 : x
  2. Step 2: Convert to fraction form
    20,258.80/27,953.58 = 11,305.60/x
  3. Step 3: Cross multiply
    20,258.80x = 27,953.58 × 11,305.60
  4. Step 4: Simplify right side
    20,258.80x = 316,031,994.05
  5. Step 5: Solve for x
    x = 316,031,994.05/20,258.80
  6. Step 6: Final answer
    x = 15,599.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.