Home / 36,840.47-55,223.57-21,040.31

Finding the Fourth Proportional to 36,840.47, 55,223.57 and 21,040.31

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Solution

The fourth proportional to 36,840.47, 55,223.57 and 21,040.31 is: 31,539.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,840.47 : 55,223.57 = 21,040.31 : x
  2. Step 2: Convert to fraction form
    36,840.47/55,223.57 = 21,040.31/x
  3. Step 3: Cross multiply
    36,840.47x = 55,223.57 × 21,040.31
  4. Step 4: Simplify right side
    36,840.47x = 1,161,920,912.13
  5. Step 5: Solve for x
    x = 1,161,920,912.13/36,840.47
  6. Step 6: Final answer
    x = 31,539.25

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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.