Home / 28,192.91-38,907.47-15,616.85

Finding the Fourth Proportional to 28,192.91, 38,907.47 and 15,616.85

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Solution

The fourth proportional to 28,192.91, 38,907.47 and 15,616.85 is: 21,551.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.91 : 38,907.47 = 15,616.85 : x
  2. Step 2: Convert to fraction form
    28,192.91/38,907.47 = 15,616.85/x
  3. Step 3: Cross multiply
    28,192.91x = 38,907.47 × 15,616.85
  4. Step 4: Simplify right side
    28,192.91x = 607,611,967.37
  5. Step 5: Solve for x
    x = 607,611,967.37/28,192.91
  6. Step 6: Final answer
    x = 21,551.95

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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.