Home / 38,112.80-57,201.60-17,085.20

Finding the Fourth Proportional to 38,112.80, 57,201.60 and 17,085.20

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Solution

The fourth proportional to 38,112.80, 57,201.60 and 17,085.20 is: 25,642.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,112.80 : 57,201.60 = 17,085.20 : x
  2. Step 2: Convert to fraction form
    38,112.80/57,201.60 = 17,085.20/x
  3. Step 3: Cross multiply
    38,112.80x = 57,201.60 × 17,085.20
  4. Step 4: Simplify right side
    38,112.80x = 977,300,776.32
  5. Step 5: Solve for x
    x = 977,300,776.32/38,112.80
  6. Step 6: Final answer
    x = 25,642.32

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1.5x scale

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.