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Finding the Fourth Proportional to 36,010.40, 53,999.40 and 13,816.40

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Solution

The fourth proportional to 36,010.40, 53,999.40 and 13,816.40 is: 20,718.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,010.40 : 53,999.40 = 13,816.40 : x
  2. Step 2: Convert to fraction form
    36,010.40/53,999.40 = 13,816.40/x
  3. Step 3: Cross multiply
    36,010.40x = 53,999.40 × 13,816.40
  4. Step 4: Simplify right side
    36,010.40x = 746,077,310.16
  5. Step 5: Solve for x
    x = 746,077,310.16/36,010.40
  6. Step 6: Final answer
    x = 20,718.38

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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.