Home / 20,301.52-28,014.30-11,347.84

Finding the Fourth Proportional to 20,301.52, 28,014.30 and 11,347.84

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Solution

The fourth proportional to 20,301.52, 28,014.30 and 11,347.84 is: 15,659.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.52 : 28,014.30 = 11,347.84 : x
  2. Step 2: Convert to fraction form
    20,301.52/28,014.30 = 11,347.84/x
  3. Step 3: Cross multiply
    20,301.52x = 28,014.30 × 11,347.84
  4. Step 4: Simplify right side
    20,301.52x = 317,901,794.11
  5. Step 5: Solve for x
    x = 317,901,794.11/20,301.52
  6. Step 6: Final answer
    x = 15,659.01

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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.