Home / 36,918.24-50,945.40-21,001.20

Finding the Fourth Proportional to 36,918.24, 50,945.40 and 21,001.20

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Solution

The fourth proportional to 36,918.24, 50,945.40 and 21,001.20 is: 28,980.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,918.24 : 50,945.40 = 21,001.20 : x
  2. Step 2: Convert to fraction form
    36,918.24/50,945.40 = 21,001.20/x
  3. Step 3: Cross multiply
    36,918.24x = 50,945.40 × 21,001.20
  4. Step 4: Simplify right side
    36,918.24x = 1,069,914,534.48
  5. Step 5: Solve for x
    x = 1,069,914,534.48/36,918.24
  6. Step 6: Final answer
    x = 28,980.65

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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.