Home / 28,446.10-39,259.10-17,121.48

Finding the Fourth Proportional to 28,446.10, 39,259.10 and 17,121.48

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Solution

The fourth proportional to 28,446.10, 39,259.10 and 17,121.48 is: 23,629.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,446.10 : 39,259.10 = 17,121.48 : x
  2. Step 2: Convert to fraction form
    28,446.10/39,259.10 = 17,121.48/x
  3. Step 3: Cross multiply
    28,446.10x = 39,259.10 × 17,121.48
  4. Step 4: Simplify right side
    28,446.10x = 672,173,895.47
  5. Step 5: Solve for x
    x = 672,173,895.47/28,446.10
  6. Step 6: Final answer
    x = 23,629.74

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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.