Home / 28,363.94-39,141.91-15,616.86

Finding the Fourth Proportional to 28,363.94, 39,141.91 and 15,616.86

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Solution

The fourth proportional to 28,363.94, 39,141.91 and 15,616.86 is: 21,551.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,363.94 : 39,141.91 = 15,616.86 : x
  2. Step 2: Convert to fraction form
    28,363.94/39,141.91 = 15,616.86/x
  3. Step 3: Cross multiply
    28,363.94x = 39,141.91 × 15,616.86
  4. Step 4: Simplify right side
    28,363.94x = 611,273,542.78
  5. Step 5: Solve for x
    x = 611,273,542.78/28,363.94
  6. Step 6: Final answer
    x = 21,551.08

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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.