Home / 28,717.77-39,624.70-16,778.80

Finding the Fourth Proportional to 28,717.77, 39,624.70 and 16,778.80

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Solution

The fourth proportional to 28,717.77, 39,624.70 and 16,778.80 is: 23,151.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717.77 : 39,624.70 = 16,778.80 : x
  2. Step 2: Convert to fraction form
    28,717.77/39,624.70 = 16,778.80/x
  3. Step 3: Cross multiply
    28,717.77x = 39,624.70 × 16,778.80
  4. Step 4: Simplify right side
    28,717.77x = 664,854,916.36
  5. Step 5: Solve for x
    x = 664,854,916.36/28,717.77
  6. Step 6: Final answer
    x = 23,151.34

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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.