Home / 28,925.74-39,919.49-16,180.11

Finding the Fourth Proportional to 28,925.74, 39,919.49 and 16,180.11

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Solution

The fourth proportional to 28,925.74, 39,919.49 and 16,180.11 is: 22,329.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,925.74 : 39,919.49 = 16,180.11 : x
  2. Step 2: Convert to fraction form
    28,925.74/39,919.49 = 16,180.11/x
  3. Step 3: Cross multiply
    28,925.74x = 39,919.49 × 16,180.11
  4. Step 4: Simplify right side
    28,925.74x = 645,901,739.34
  5. Step 5: Solve for x
    x = 645,901,739.34/28,925.74
  6. Step 6: Final answer
    x = 22,329.65

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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.