Home / 38,874.27-53,646.72-21,878.85

Finding the Fourth Proportional to 38,874.27, 53,646.72 and 21,878.85

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Solution

The fourth proportional to 38,874.27, 53,646.72 and 21,878.85 is: 30,192.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,874.27 : 53,646.72 = 21,878.85 : x
  2. Step 2: Convert to fraction form
    38,874.27/53,646.72 = 21,878.85/x
  3. Step 3: Cross multiply
    38,874.27x = 53,646.72 × 21,878.85
  4. Step 4: Simplify right side
    38,874.27x = 1,173,728,430.48
  5. Step 5: Solve for x
    x = 1,173,728,430.48/38,874.27
  6. Step 6: Final answer
    x = 30,192.94

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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.