Home / 38,672.58-53,364.90-21,445.44

Finding the Fourth Proportional to 38,672.58, 53,364.90 and 21,445.44

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Solution

The fourth proportional to 38,672.58, 53,364.90 and 21,445.44 is: 29,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,672.58 : 53,364.90 = 21,445.44 : x
  2. Step 2: Convert to fraction form
    38,672.58/53,364.90 = 21,445.44/x
  3. Step 3: Cross multiply
    38,672.58x = 53,364.90 × 21,445.44
  4. Step 4: Simplify right side
    38,672.58x = 1,144,433,761.06
  5. Step 5: Solve for x
    x = 1,144,433,761.06/38,672.58
  6. Step 6: Final answer
    x = 29,592.90

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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.