Home / 20,257.81-27,957.19-11,307.06

Finding the Fourth Proportional to 20,257.81, 27,957.19 and 11,307.06

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Solution

The fourth proportional to 20,257.81, 27,957.19 and 11,307.06 is: 15,604.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.81 : 27,957.19 = 11,307.06 : x
  2. Step 2: Convert to fraction form
    20,257.81/27,957.19 = 11,307.06/x
  3. Step 3: Cross multiply
    20,257.81x = 27,957.19 × 11,307.06
  4. Step 4: Simplify right side
    20,257.81x = 316,113,624.76
  5. Step 5: Solve for x
    x = 316,113,624.76/20,257.81
  6. Step 6: Final answer
    x = 15,604.53

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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.