Home / 31,875.53-47,789.60-21,986.64

Finding the Fourth Proportional to 31,875.53, 47,789.60 and 21,986.64

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Solution

The fourth proportional to 31,875.53, 47,789.60 and 21,986.64 is: 32,963.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,875.53 : 47,789.60 = 21,986.64 : x
  2. Step 2: Convert to fraction form
    31,875.53/47,789.60 = 21,986.64/x
  3. Step 3: Cross multiply
    31,875.53x = 47,789.60 × 21,986.64
  4. Step 4: Simplify right side
    31,875.53x = 1,050,732,621.01
  5. Step 5: Solve for x
    x = 1,050,732,621.01/31,875.53
  6. Step 6: Final answer
    x = 32,963.62

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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.