Home / 28,530.26-39,373.68-15,955

Finding the Fourth Proportional to 28,530.26, 39,373.68 and 15,955

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Solution

The fourth proportional to 28,530.26, 39,373.68 and 15,955 is: 22,018.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,530.26 : 39,373.68 = 15,955 : x
  2. Step 2: Convert to fraction form
    28,530.26/39,373.68 = 15,955/x
  3. Step 3: Cross multiply
    28,530.26x = 39,373.68 × 15,955
  4. Step 4: Simplify right side
    28,530.26x = 628,207,064.40
  5. Step 5: Solve for x
    x = 628,207,064.40/28,530.26
  6. Step 6: Final answer
    x = 22,018.97

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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.