Home / 28,334.50-39,101.61-15,758.98

Finding the Fourth Proportional to 28,334.50, 39,101.61 and 15,758.98

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Solution

The fourth proportional to 28,334.50, 39,101.61 and 15,758.98 is: 21,747.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334.50 : 39,101.61 = 15,758.98 : x
  2. Step 2: Convert to fraction form
    28,334.50/39,101.61 = 15,758.98/x
  3. Step 3: Cross multiply
    28,334.50x = 39,101.61 × 15,758.98
  4. Step 4: Simplify right side
    28,334.50x = 616,201,489.96
  5. Step 5: Solve for x
    x = 616,201,489.96/28,334.50
  6. Step 6: Final answer
    x = 21,747.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.