Home / 31,878.48-47,816.52-18,027.60

Finding the Fourth Proportional to 31,878.48, 47,816.52 and 18,027.60

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Solution

The fourth proportional to 31,878.48, 47,816.52 and 18,027.60 is: 27,040.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,878.48 : 47,816.52 = 18,027.60 : x
  2. Step 2: Convert to fraction form
    31,878.48/47,816.52 = 18,027.60/x
  3. Step 3: Cross multiply
    31,878.48x = 47,816.52 × 18,027.60
  4. Step 4: Simplify right side
    31,878.48x = 862,017,095.95
  5. Step 5: Solve for x
    x = 862,017,095.95/31,878.48
  6. Step 6: Final answer
    x = 27,040.72

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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.