Home / 38,898.90-53,674.52-21,902.27

Finding the Fourth Proportional to 38,898.90, 53,674.52 and 21,902.27

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Solution

The fourth proportional to 38,898.90, 53,674.52 and 21,902.27 is: 30,221.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,898.90 : 53,674.52 = 21,902.27 : x
  2. Step 2: Convert to fraction form
    38,898.90/53,674.52 = 21,902.27/x
  3. Step 3: Cross multiply
    38,898.90x = 53,674.52 × 21,902.27
  4. Step 4: Simplify right side
    38,898.90x = 1,175,593,451.28
  5. Step 5: Solve for x
    x = 1,175,593,451.28/38,898.90
  6. Step 6: Final answer
    x = 30,221.77

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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.