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Finding the Fourth Proportional to 36,225.06, 49,978.74 and 21,114.28

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Solution

The fourth proportional to 36,225.06, 49,978.74 and 21,114.28 is: 29,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,225.06 : 49,978.74 = 21,114.28 : x
  2. Step 2: Convert to fraction form
    36,225.06/49,978.74 = 21,114.28/x
  3. Step 3: Cross multiply
    36,225.06x = 49,978.74 × 21,114.28
  4. Step 4: Simplify right side
    36,225.06x = 1,055,265,110.41
  5. Step 5: Solve for x
    x = 1,055,265,110.41/36,225.06
  6. Step 6: Final answer
    x = 29,130.80

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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.