Home / 28,210.13-38,934.27-18,005.57

Finding the Fourth Proportional to 28,210.13, 38,934.27 and 18,005.57

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Solution

The fourth proportional to 28,210.13, 38,934.27 and 18,005.57 is: 24,850.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,210.13 : 38,934.27 = 18,005.57 : x
  2. Step 2: Convert to fraction form
    28,210.13/38,934.27 = 18,005.57/x
  3. Step 3: Cross multiply
    28,210.13x = 38,934.27 × 18,005.57
  4. Step 4: Simplify right side
    28,210.13x = 701,033,723.88
  5. Step 5: Solve for x
    x = 701,033,723.88/28,210.13
  6. Step 6: Final answer
    x = 24,850.43

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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.