Home / 36,686.80-50,628-21,580.12

Finding the Fourth Proportional to 36,686.80, 50,628 and 21,580.12

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Solution

The fourth proportional to 36,686.80, 50,628 and 21,580.12 is: 29,780.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,686.80 : 50,628 = 21,580.12 : x
  2. Step 2: Convert to fraction form
    36,686.80/50,628 = 21,580.12/x
  3. Step 3: Cross multiply
    36,686.80x = 50,628 × 21,580.12
  4. Step 4: Simplify right side
    36,686.80x = 1,092,558,315.36
  5. Step 5: Solve for x
    x = 1,092,558,315.36/36,686.80
  6. Step 6: Final answer
    x = 29,780.69

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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.