Home / 28,942.79-39,939.95-16,367.81

Finding the Fourth Proportional to 28,942.79, 39,939.95 and 16,367.81

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Solution

The fourth proportional to 28,942.79, 39,939.95 and 16,367.81 is: 22,586.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,942.79 : 39,939.95 = 16,367.81 : x
  2. Step 2: Convert to fraction form
    28,942.79/39,939.95 = 16,367.81/x
  3. Step 3: Cross multiply
    28,942.79x = 39,939.95 × 16,367.81
  4. Step 4: Simplify right side
    28,942.79x = 653,729,354.23
  5. Step 5: Solve for x
    x = 653,729,354.23/28,942.79
  6. Step 6: Final answer
    x = 22,586.95

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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.