Home / 20,211.24-27,890.46-11,258.40

Finding the Fourth Proportional to 20,211.24, 27,890.46 and 11,258.40

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Solution

The fourth proportional to 20,211.24, 27,890.46 and 11,258.40 is: 15,536.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.24 : 27,890.46 = 11,258.40 : x
  2. Step 2: Convert to fraction form
    20,211.24/27,890.46 = 11,258.40/x
  3. Step 3: Cross multiply
    20,211.24x = 27,890.46 × 11,258.40
  4. Step 4: Simplify right side
    20,211.24x = 314,001,954.86
  5. Step 5: Solve for x
    x = 314,001,954.86/20,211.24
  6. Step 6: Final answer
    x = 15,536.01

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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.