Home / 28,925.46-39,920.84-16,179.35

Finding the Fourth Proportional to 28,925.46, 39,920.84 and 16,179.35

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Solution

The fourth proportional to 28,925.46, 39,920.84 and 16,179.35 is: 22,329.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,925.46 : 39,920.84 = 16,179.35 : x
  2. Step 2: Convert to fraction form
    28,925.46/39,920.84 = 16,179.35/x
  3. Step 3: Cross multiply
    28,925.46x = 39,920.84 × 16,179.35
  4. Step 4: Simplify right side
    28,925.46x = 645,892,962.15
  5. Step 5: Solve for x
    x = 645,892,962.15/28,925.46
  6. Step 6: Final answer
    x = 22,329.57

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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.