Home / 28,042.26-38,700.64-16,107.90

Finding the Fourth Proportional to 28,042.26, 38,700.64 and 16,107.90

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Solution

The fourth proportional to 28,042.26, 38,700.64 and 16,107.90 is: 22,230.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.26 : 38,700.64 = 16,107.90 : x
  2. Step 2: Convert to fraction form
    28,042.26/38,700.64 = 16,107.90/x
  3. Step 3: Cross multiply
    28,042.26x = 38,700.64 × 16,107.90
  4. Step 4: Simplify right side
    28,042.26x = 623,386,039.06
  5. Step 5: Solve for x
    x = 623,386,039.06/28,042.26
  6. Step 6: Final answer
    x = 22,230.24

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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.