Home / 20,927.76-28,871.42-17,727.45

Finding the Fourth Proportional to 20,927.76, 28,871.42 and 17,727.45

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Solution

The fourth proportional to 20,927.76, 28,871.42 and 17,727.45 is: 24,456.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.76 : 28,871.42 = 17,727.45 : x
  2. Step 2: Convert to fraction form
    20,927.76/28,871.42 = 17,727.45/x
  3. Step 3: Cross multiply
    20,927.76x = 28,871.42 × 17,727.45
  4. Step 4: Simplify right side
    20,927.76x = 511,816,565.84
  5. Step 5: Solve for x
    x = 511,816,565.84/20,927.76
  6. Step 6: Final answer
    x = 24,456.35

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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.