Home / 40,025.06-55,234.76-21,876.16

Finding the Fourth Proportional to 40,025.06, 55,234.76 and 21,876.16

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Solution

The fourth proportional to 40,025.06, 55,234.76 and 21,876.16 is: 30,189.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,025.06 : 55,234.76 = 21,876.16 : x
  2. Step 2: Convert to fraction form
    40,025.06/55,234.76 = 21,876.16/x
  3. Step 3: Cross multiply
    40,025.06x = 55,234.76 × 21,876.16
  4. Step 4: Simplify right side
    40,025.06x = 1,208,324,225.84
  5. Step 5: Solve for x
    x = 1,208,324,225.84/40,025.06
  6. Step 6: Final answer
    x = 30,189.19

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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.