Home / 21,237.25-31,859.72-8,750.33

Finding the Fourth Proportional to 21,237.25, 31,859.72 and 8,750.33

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Solution

The fourth proportional to 21,237.25, 31,859.72 and 8,750.33 is: 13,127.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,237.25 : 31,859.72 = 8,750.33 : x
  2. Step 2: Convert to fraction form
    21,237.25/31,859.72 = 8,750.33/x
  3. Step 3: Cross multiply
    21,237.25x = 31,859.72 × 8,750.33
  4. Step 4: Simplify right side
    21,237.25x = 278,783,000.64
  5. Step 5: Solve for x
    x = 278,783,000.64/21,237.25
  6. Step 6: Final answer
    x = 13,127.08

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1.5x scale

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.