Home / 28,974.32-39,981.26-16,225.73

Finding the Fourth Proportional to 28,974.32, 39,981.26 and 16,225.73

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Solution

The fourth proportional to 28,974.32, 39,981.26 and 16,225.73 is: 22,389.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,974.32 : 39,981.26 = 16,225.73 : x
  2. Step 2: Convert to fraction form
    28,974.32/39,981.26 = 16,225.73/x
  3. Step 3: Cross multiply
    28,974.32x = 39,981.26 × 16,225.73
  4. Step 4: Simplify right side
    28,974.32x = 648,725,048.69
  5. Step 5: Solve for x
    x = 648,725,048.69/28,974.32
  6. Step 6: Final answer
    x = 22,389.66

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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.