Home / 28,473.11-39,292.96-15,898.31

Finding the Fourth Proportional to 28,473.11, 39,292.96 and 15,898.31

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Solution

The fourth proportional to 28,473.11, 39,292.96 and 15,898.31 is: 21,939.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,473.11 : 39,292.96 = 15,898.31 : x
  2. Step 2: Convert to fraction form
    28,473.11/39,292.96 = 15,898.31/x
  3. Step 3: Cross multiply
    28,473.11x = 39,292.96 × 15,898.31
  4. Step 4: Simplify right side
    28,473.11x = 624,691,422.69
  5. Step 5: Solve for x
    x = 624,691,422.69/28,473.11
  6. Step 6: Final answer
    x = 21,939.70

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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.