Home / 38,502.58-53,132.99-21,507.13

Finding the Fourth Proportional to 38,502.58, 53,132.99 and 21,507.13

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Solution

The fourth proportional to 38,502.58, 53,132.99 and 21,507.13 is: 29,679.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,502.58 : 53,132.99 = 21,507.13 : x
  2. Step 2: Convert to fraction form
    38,502.58/53,132.99 = 21,507.13/x
  3. Step 3: Cross multiply
    38,502.58x = 53,132.99 × 21,507.13
  4. Step 4: Simplify right side
    38,502.58x = 1,142,738,015.68
  5. Step 5: Solve for x
    x = 1,142,738,015.68/38,502.58
  6. Step 6: Final answer
    x = 29,679.52

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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.