Home / 37,887.75-52,285.10-21,120.75

Finding the Fourth Proportional to 37,887.75, 52,285.10 and 21,120.75

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Solution

The fourth proportional to 37,887.75, 52,285.10 and 21,120.75 is: 29,146.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,887.75 : 52,285.10 = 21,120.75 : x
  2. Step 2: Convert to fraction form
    37,887.75/52,285.10 = 21,120.75/x
  3. Step 3: Cross multiply
    37,887.75x = 52,285.10 × 21,120.75
  4. Step 4: Simplify right side
    37,887.75x = 1,104,300,420.22
  5. Step 5: Solve for x
    x = 1,104,300,420.22/37,887.75
  6. Step 6: Final answer
    x = 29,146.64

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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.