Home / 28,858.43-43,287.98-10,139.01

Finding the Fourth Proportional to 28,858.43, 43,287.98 and 10,139.01

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Solution

The fourth proportional to 28,858.43, 43,287.98 and 10,139.01 is: 15,208.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,858.43 : 43,287.98 = 10,139.01 : x
  2. Step 2: Convert to fraction form
    28,858.43/43,287.98 = 10,139.01/x
  3. Step 3: Cross multiply
    28,858.43x = 43,287.98 × 10,139.01
  4. Step 4: Simplify right side
    28,858.43x = 438,897,211.40
  5. Step 5: Solve for x
    x = 438,897,211.40/28,858.43
  6. Step 6: Final answer
    x = 15,208.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.