Home / 28,926.24-39,920.16-16,180.62

Finding the Fourth Proportional to 28,926.24, 39,920.16 and 16,180.62

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Solution

The fourth proportional to 28,926.24, 39,920.16 and 16,180.62 is: 22,330.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,926.24 : 39,920.16 = 16,180.62 : x
  2. Step 2: Convert to fraction form
    28,926.24/39,920.16 = 16,180.62/x
  3. Step 3: Cross multiply
    28,926.24x = 39,920.16 × 16,180.62
  4. Step 4: Simplify right side
    28,926.24x = 645,932,939.30
  5. Step 5: Solve for x
    x = 645,932,939.30/28,926.24
  6. Step 6: Final answer
    x = 22,330.35

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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.