Home / 20,557.19-28,337.23-16,773.68

Finding the Fourth Proportional to 20,557.19, 28,337.23 and 16,773.68

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Solution

The fourth proportional to 20,557.19, 28,337.23 and 16,773.68 is: 23,121.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,557.19 : 28,337.23 = 16,773.68 : x
  2. Step 2: Convert to fraction form
    20,557.19/28,337.23 = 16,773.68/x
  3. Step 3: Cross multiply
    20,557.19x = 28,337.23 × 16,773.68
  4. Step 4: Simplify right side
    20,557.19x = 475,319,628.11
  5. Step 5: Solve for x
    x = 475,319,628.11/20,557.19
  6. Step 6: Final answer
    x = 23,121.82

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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.