Home / 36,043.08-49,739.52-20,128.10

Finding the Fourth Proportional to 36,043.08, 49,739.52 and 20,128.10

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Solution

The fourth proportional to 36,043.08, 49,739.52 and 20,128.10 is: 27,776.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,043.08 : 49,739.52 = 20,128.10 : x
  2. Step 2: Convert to fraction form
    36,043.08/49,739.52 = 20,128.10/x
  3. Step 3: Cross multiply
    36,043.08x = 49,739.52 × 20,128.10
  4. Step 4: Simplify right side
    36,043.08x = 1,001,161,746.07
  5. Step 5: Solve for x
    x = 1,001,161,746.07/36,043.08
  6. Step 6: Final answer
    x = 27,776.81

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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.