Home / 38,904.30-53,687.23-21,908.48

Finding the Fourth Proportional to 38,904.30, 53,687.23 and 21,908.48

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Solution

The fourth proportional to 38,904.30, 53,687.23 and 21,908.48 is: 30,233.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,904.30 : 53,687.23 = 21,908.48 : x
  2. Step 2: Convert to fraction form
    38,904.30/53,687.23 = 21,908.48/x
  3. Step 3: Cross multiply
    38,904.30x = 53,687.23 × 21,908.48
  4. Step 4: Simplify right side
    38,904.30x = 1,176,205,281.50
  5. Step 5: Solve for x
    x = 1,176,205,281.50/38,904.30
  6. Step 6: Final answer
    x = 30,233.30

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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.