Home / 28,142.34-38,834.85-15,392.97

Finding the Fourth Proportional to 28,142.34, 38,834.85 and 15,392.97

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Solution

The fourth proportional to 28,142.34, 38,834.85 and 15,392.97 is: 21,241.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,142.34 : 38,834.85 = 15,392.97 : x
  2. Step 2: Convert to fraction form
    28,142.34/38,834.85 = 15,392.97/x
  3. Step 3: Cross multiply
    28,142.34x = 38,834.85 × 15,392.97
  4. Step 4: Simplify right side
    28,142.34x = 597,783,681.00
  5. Step 5: Solve for x
    x = 597,783,681.00/28,142.34
  6. Step 6: Final answer
    x = 21,241.43

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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.