Home / 28,478.58-39,294.34-16,535.73

Finding the Fourth Proportional to 28,478.58, 39,294.34 and 16,535.73

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Solution

The fourth proportional to 28,478.58, 39,294.34 and 16,535.73 is: 22,815.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,478.58 : 39,294.34 = 16,535.73 : x
  2. Step 2: Convert to fraction form
    28,478.58/39,294.34 = 16,535.73/x
  3. Step 3: Cross multiply
    28,478.58x = 39,294.34 × 16,535.73
  4. Step 4: Simplify right side
    28,478.58x = 649,760,596.77
  5. Step 5: Solve for x
    x = 649,760,596.77/28,478.58
  6. Step 6: Final answer
    x = 22,815.77

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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.