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Finding the Fourth Proportional to 27,401.60, 41,025.60 and 21,206.40

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Solution

The fourth proportional to 27,401.60, 41,025.60 and 21,206.40 is: 31,750.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,401.60 : 41,025.60 = 21,206.40 : x
  2. Step 2: Convert to fraction form
    27,401.60/41,025.60 = 21,206.40/x
  3. Step 3: Cross multiply
    27,401.60x = 41,025.60 × 21,206.40
  4. Step 4: Simplify right side
    27,401.60x = 870,005,283.84
  5. Step 5: Solve for x
    x = 870,005,283.84/27,401.60
  6. Step 6: Final answer
    x = 31,750.16

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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.