Home / 38,502.48-53,135.28-21,735.12

Finding the Fourth Proportional to 38,502.48, 53,135.28 and 21,735.12

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Solution

The fourth proportional to 38,502.48, 53,135.28 and 21,735.12 is: 29,995.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,502.48 : 53,135.28 = 21,735.12 : x
  2. Step 2: Convert to fraction form
    38,502.48/53,135.28 = 21,735.12/x
  3. Step 3: Cross multiply
    38,502.48x = 53,135.28 × 21,735.12
  4. Step 4: Simplify right side
    38,502.48x = 1,154,901,687.03
  5. Step 5: Solve for x
    x = 1,154,901,687.03/38,502.48
  6. Step 6: Final answer
    x = 29,995.51

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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.