Home / 20,073.68-27,705.55-11,581.28

Finding the Fourth Proportional to 20,073.68, 27,705.55 and 11,581.28

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Solution

The fourth proportional to 20,073.68, 27,705.55 and 11,581.28 is: 15,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.68 : 27,705.55 = 11,581.28 : x
  2. Step 2: Convert to fraction form
    20,073.68/27,705.55 = 11,581.28/x
  3. Step 3: Cross multiply
    20,073.68x = 27,705.55 × 11,581.28
  4. Step 4: Simplify right side
    20,073.68x = 320,865,674.20
  5. Step 5: Solve for x
    x = 320,865,674.20/20,073.68
  6. Step 6: Final answer
    x = 15,984.40

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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.