Home / 20,533.82-28,337.63-11,581.14

Finding the Fourth Proportional to 20,533.82, 28,337.63 and 11,581.14

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Solution

The fourth proportional to 20,533.82, 28,337.63 and 11,581.14 is: 15,982.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533.82 : 28,337.63 = 11,581.14 : x
  2. Step 2: Convert to fraction form
    20,533.82/28,337.63 = 11,581.14/x
  3. Step 3: Cross multiply
    20,533.82x = 28,337.63 × 11,581.14
  4. Step 4: Simplify right side
    20,533.82x = 328,182,060.30
  5. Step 5: Solve for x
    x = 328,182,060.30/20,533.82
  6. Step 6: Final answer
    x = 15,982.51

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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.