Home / 20,885.03-28,661.54-20,737.41

Finding the Fourth Proportional to 20,885.03, 28,661.54 and 20,737.41

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Solution

The fourth proportional to 20,885.03, 28,661.54 and 20,737.41 is: 28,458.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885.03 : 28,661.54 = 20,737.41 : x
  2. Step 2: Convert to fraction form
    20,885.03/28,661.54 = 20,737.41/x
  3. Step 3: Cross multiply
    20,885.03x = 28,661.54 × 20,737.41
  4. Step 4: Simplify right side
    20,885.03x = 594,366,002.52
  5. Step 5: Solve for x
    x = 594,366,002.52/20,885.03
  6. Step 6: Final answer
    x = 28,458.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.