Home / 28,521.14-39,359.24-15,945.89

Finding the Fourth Proportional to 28,521.14, 39,359.24 and 15,945.89

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Solution

The fourth proportional to 28,521.14, 39,359.24 and 15,945.89 is: 22,005.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,521.14 : 39,359.24 = 15,945.89 : x
  2. Step 2: Convert to fraction form
    28,521.14/39,359.24 = 15,945.89/x
  3. Step 3: Cross multiply
    28,521.14x = 39,359.24 × 15,945.89
  4. Step 4: Simplify right side
    28,521.14x = 627,617,835.00
  5. Step 5: Solve for x
    x = 627,617,835.00/28,521.14
  6. Step 6: Final answer
    x = 22,005.36

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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.