Home / 38,276.35-57,415.70-31,664.45

Finding the Fourth Proportional to 38,276.35, 57,415.70 and 31,664.45

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Solution

The fourth proportional to 38,276.35, 57,415.70 and 31,664.45 is: 47,497.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,276.35 : 57,415.70 = 31,664.45 : x
  2. Step 2: Convert to fraction form
    38,276.35/57,415.70 = 31,664.45/x
  3. Step 3: Cross multiply
    38,276.35x = 57,415.70 × 31,664.45
  4. Step 4: Simplify right side
    38,276.35x = 1,818,036,784.57
  5. Step 5: Solve for x
    x = 1,818,036,784.57/38,276.35
  6. Step 6: Final answer
    x = 47,497.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.