Home / 38,502.20-53,131.43-21,506.36

Finding the Fourth Proportional to 38,502.20, 53,131.43 and 21,506.36

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Solution

The fourth proportional to 38,502.20, 53,131.43 and 21,506.36 is: 29,677.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,502.20 : 53,131.43 = 21,506.36 : x
  2. Step 2: Convert to fraction form
    38,502.20/53,131.43 = 21,506.36/x
  3. Step 3: Cross multiply
    38,502.20x = 53,131.43 × 21,506.36
  4. Step 4: Simplify right side
    38,502.20x = 1,142,663,449.00
  5. Step 5: Solve for x
    x = 1,142,663,449.00/38,502.20
  6. Step 6: Final answer
    x = 29,677.88

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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.