Home / 20,301.34-28,015.76-11,348.84

Finding the Fourth Proportional to 20,301.34, 28,015.76 and 11,348.84

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Solution

The fourth proportional to 20,301.34, 28,015.76 and 11,348.84 is: 15,661.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.34 : 28,015.76 = 11,348.84 : x
  2. Step 2: Convert to fraction form
    20,301.34/28,015.76 = 11,348.84/x
  3. Step 3: Cross multiply
    20,301.34x = 28,015.76 × 11,348.84
  4. Step 4: Simplify right side
    20,301.34x = 317,946,377.72
  5. Step 5: Solve for x
    x = 317,946,377.72/20,301.34
  6. Step 6: Final answer
    x = 15,661.35

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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.