Home / 38,535.53-53,178.88-21,539.76

Finding the Fourth Proportional to 38,535.53, 53,178.88 and 21,539.76

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Solution

The fourth proportional to 38,535.53, 53,178.88 and 21,539.76 is: 29,724.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,535.53 : 53,178.88 = 21,539.76 : x
  2. Step 2: Convert to fraction form
    38,535.53/53,178.88 = 21,539.76/x
  3. Step 3: Cross multiply
    38,535.53x = 53,178.88 × 21,539.76
  4. Step 4: Simplify right side
    38,535.53x = 1,145,459,992.53
  5. Step 5: Solve for x
    x = 1,145,459,992.53/38,535.53
  6. Step 6: Final answer
    x = 29,724.78

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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.