Home / 31,888.08-47,813.90-21,370.64

Finding the Fourth Proportional to 31,888.08, 47,813.90 and 21,370.64

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Solution

The fourth proportional to 31,888.08, 47,813.90 and 21,370.64 is: 32,043.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,888.08 : 47,813.90 = 21,370.64 : x
  2. Step 2: Convert to fraction form
    31,888.08/47,813.90 = 21,370.64/x
  3. Step 3: Cross multiply
    31,888.08x = 47,813.90 × 21,370.64
  4. Step 4: Simplify right side
    31,888.08x = 1,021,813,297.97
  5. Step 5: Solve for x
    x = 1,021,813,297.97/31,888.08
  6. Step 6: Final answer
    x = 32,043.74

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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.