Home / 38,644.09-53,332.22-21,648.06

Finding the Fourth Proportional to 38,644.09, 53,332.22 and 21,648.06

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Solution

The fourth proportional to 38,644.09, 53,332.22 and 21,648.06 is: 29,876.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,644.09 : 53,332.22 = 21,648.06 : x
  2. Step 2: Convert to fraction form
    38,644.09/53,332.22 = 21,648.06/x
  3. Step 3: Cross multiply
    38,644.09x = 53,332.22 × 21,648.06
  4. Step 4: Simplify right side
    38,644.09x = 1,154,539,152.61
  5. Step 5: Solve for x
    x = 1,154,539,152.61/38,644.09
  6. Step 6: Final answer
    x = 29,876.22

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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.