Home / 36,218.08-49,980.32-20,085.28

Finding the Fourth Proportional to 36,218.08, 49,980.32 and 20,085.28

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Solution

The fourth proportional to 36,218.08, 49,980.32 and 20,085.28 is: 27,717.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,218.08 : 49,980.32 = 20,085.28 : x
  2. Step 2: Convert to fraction form
    36,218.08/49,980.32 = 20,085.28/x
  3. Step 3: Cross multiply
    36,218.08x = 49,980.32 × 20,085.28
  4. Step 4: Simplify right side
    36,218.08x = 1,003,868,721.69
  5. Step 5: Solve for x
    x = 1,003,868,721.69/36,218.08
  6. Step 6: Final answer
    x = 27,717.34

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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.