Home / 38,761.76-53,492.88-21,996.32

Finding the Fourth Proportional to 38,761.76, 53,492.88 and 21,996.32

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Solution

The fourth proportional to 38,761.76, 53,492.88 and 21,996.32 is: 30,355.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,761.76 : 53,492.88 = 21,996.32 : x
  2. Step 2: Convert to fraction form
    38,761.76/53,492.88 = 21,996.32/x
  3. Step 3: Cross multiply
    38,761.76x = 53,492.88 × 21,996.32
  4. Step 4: Simplify right side
    38,761.76x = 1,176,646,506.20
  5. Step 5: Solve for x
    x = 1,176,646,506.20/38,761.76
  6. Step 6: Final answer
    x = 30,355.86

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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.