Home / 28,277.35-39,022.73-15,702.10

Finding the Fourth Proportional to 28,277.35, 39,022.73 and 15,702.10

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Solution

The fourth proportional to 28,277.35, 39,022.73 and 15,702.10 is: 21,668.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,277.35 : 39,022.73 = 15,702.10 : x
  2. Step 2: Convert to fraction form
    28,277.35/39,022.73 = 15,702.10/x
  3. Step 3: Cross multiply
    28,277.35x = 39,022.73 × 15,702.10
  4. Step 4: Simplify right side
    28,277.35x = 612,738,750.43
  5. Step 5: Solve for x
    x = 612,738,750.43/28,277.35
  6. Step 6: Final answer
    x = 21,668.89

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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.