Home / 28,400.36-39,192.50-16,470.62

Finding the Fourth Proportional to 28,400.36, 39,192.50 and 16,470.62

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Solution

The fourth proportional to 28,400.36, 39,192.50 and 16,470.62 is: 22,729.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,400.36 : 39,192.50 = 16,470.62 : x
  2. Step 2: Convert to fraction form
    28,400.36/39,192.50 = 16,470.62/x
  3. Step 3: Cross multiply
    28,400.36x = 39,192.50 × 16,470.62
  4. Step 4: Simplify right side
    28,400.36x = 645,524,496.03
  5. Step 5: Solve for x
    x = 645,524,496.03/28,400.36
  6. Step 6: Final answer
    x = 22,729.45

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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.