Home / 38,644.48-53,331.38-21,647.73

Finding the Fourth Proportional to 38,644.48, 53,331.38 and 21,647.73

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Solution

The fourth proportional to 38,644.48, 53,331.38 and 21,647.73 is: 29,874.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,644.48 : 53,331.38 = 21,647.73 : x
  2. Step 2: Convert to fraction form
    38,644.48/53,331.38 = 21,647.73/x
  3. Step 3: Cross multiply
    38,644.48x = 53,331.38 × 21,647.73
  4. Step 4: Simplify right side
    38,644.48x = 1,154,503,314.77
  5. Step 5: Solve for x
    x = 1,154,503,314.77/38,644.48
  6. Step 6: Final answer
    x = 29,874.99

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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.