Home / 28,070.07-38,738.16-16,137.42

Finding the Fourth Proportional to 28,070.07, 38,738.16 and 16,137.42

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Solution

The fourth proportional to 28,070.07, 38,738.16 and 16,137.42 is: 22,270.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070.07 : 38,738.16 = 16,137.42 : x
  2. Step 2: Convert to fraction form
    28,070.07/38,738.16 = 16,137.42/x
  3. Step 3: Cross multiply
    28,070.07x = 38,738.16 × 16,137.42
  4. Step 4: Simplify right side
    28,070.07x = 625,133,957.95
  5. Step 5: Solve for x
    x = 625,133,957.95/28,070.07
  6. Step 6: Final answer
    x = 22,270.48

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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.