Home / 28,854.50-39,819.21-16,278.98

Finding the Fourth Proportional to 28,854.50, 39,819.21 and 16,278.98

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Solution

The fourth proportional to 28,854.50, 39,819.21 and 16,278.98 is: 22,464.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,854.50 : 39,819.21 = 16,278.98 : x
  2. Step 2: Convert to fraction form
    28,854.50/39,819.21 = 16,278.98/x
  3. Step 3: Cross multiply
    28,854.50x = 39,819.21 × 16,278.98
  4. Step 4: Simplify right side
    28,854.50x = 648,216,123.21
  5. Step 5: Solve for x
    x = 648,216,123.21/28,854.50
  6. Step 6: Final answer
    x = 22,464.99

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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.