Home / 20,875.97-28,808.66-11,444.51

Finding the Fourth Proportional to 20,875.97, 28,808.66 and 11,444.51

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Solution

The fourth proportional to 20,875.97, 28,808.66 and 11,444.51 is: 15,793.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875.97 : 28,808.66 = 11,444.51 : x
  2. Step 2: Convert to fraction form
    20,875.97/28,808.66 = 11,444.51/x
  3. Step 3: Cross multiply
    20,875.97x = 28,808.66 × 11,444.51
  4. Step 4: Simplify right side
    20,875.97x = 329,700,997.46
  5. Step 5: Solve for x
    x = 329,700,997.46/20,875.97
  6. Step 6: Final answer
    x = 15,793.33

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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.