Home / 38,617.96-53,297.76-21,628.66

Finding the Fourth Proportional to 38,617.96, 53,297.76 and 21,628.66

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Solution

The fourth proportional to 38,617.96, 53,297.76 and 21,628.66 is: 29,850.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,617.96 : 53,297.76 = 21,628.66 : x
  2. Step 2: Convert to fraction form
    38,617.96/53,297.76 = 21,628.66/x
  3. Step 3: Cross multiply
    38,617.96x = 53,297.76 × 21,628.66
  4. Step 4: Simplify right side
    38,617.96x = 1,152,759,129.80
  5. Step 5: Solve for x
    x = 1,152,759,129.80/38,617.96
  6. Step 6: Final answer
    x = 29,850.34

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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.