Home / 38,644.59-53,328.96-21,648.72

Finding the Fourth Proportional to 38,644.59, 53,328.96 and 21,648.72

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Solution

The fourth proportional to 38,644.59, 53,328.96 and 21,648.72 is: 29,874.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,644.59 : 53,328.96 = 21,648.72 : x
  2. Step 2: Convert to fraction form
    38,644.59/53,328.96 = 21,648.72/x
  3. Step 3: Cross multiply
    38,644.59x = 53,328.96 × 21,648.72
  4. Step 4: Simplify right side
    38,644.59x = 1,154,503,722.93
  5. Step 5: Solve for x
    x = 1,154,503,722.93/38,644.59
  6. Step 6: Final answer
    x = 29,874.91

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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.