Home / 38,272.86-52,815.33-21,276.81

Finding the Fourth Proportional to 38,272.86, 52,815.33 and 21,276.81

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Solution

The fourth proportional to 38,272.86, 52,815.33 and 21,276.81 is: 29,361.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,272.86 : 52,815.33 = 21,276.81 : x
  2. Step 2: Convert to fraction form
    38,272.86/52,815.33 = 21,276.81/x
  3. Step 3: Cross multiply
    38,272.86x = 52,815.33 × 21,276.81
  4. Step 4: Simplify right side
    38,272.86x = 1,123,741,741.50
  5. Step 5: Solve for x
    x = 1,123,741,741.50/38,272.86
  6. Step 6: Final answer
    x = 29,361.32

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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.