Home / 20,853.27-31,280.01-5,270.91

Finding the Fourth Proportional to 20,853.27, 31,280.01 and 5,270.91

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Solution

The fourth proportional to 20,853.27, 31,280.01 and 5,270.91 is: 7,906.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853.27 : 31,280.01 = 5,270.91 : x
  2. Step 2: Convert to fraction form
    20,853.27/31,280.01 = 5,270.91/x
  3. Step 3: Cross multiply
    20,853.27x = 31,280.01 × 5,270.91
  4. Step 4: Simplify right side
    20,853.27x = 164,874,117.51
  5. Step 5: Solve for x
    x = 164,874,117.51/20,853.27
  6. Step 6: Final answer
    x = 7,906.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.