Home / 38,644.59-53,332.92-21,648.56

Finding the Fourth Proportional to 38,644.59, 53,332.92 and 21,648.56

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Solution

The fourth proportional to 38,644.59, 53,332.92 and 21,648.56 is: 29,876.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,644.59 : 53,332.92 = 21,648.56 : x
  2. Step 2: Convert to fraction form
    38,644.59/53,332.92 = 21,648.56/x
  3. Step 3: Cross multiply
    38,644.59x = 53,332.92 × 21,648.56
  4. Step 4: Simplify right side
    38,644.59x = 1,154,580,810.35
  5. Step 5: Solve for x
    x = 1,154,580,810.35/38,644.59
  6. Step 6: Final answer
    x = 29,876.91

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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.