Home / 38,988.23-53,803.70-21,992.42

Finding the Fourth Proportional to 38,988.23, 53,803.70 and 21,992.42

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Solution

The fourth proportional to 38,988.23, 53,803.70 and 21,992.42 is: 30,349.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,988.23 : 53,803.70 = 21,992.42 : x
  2. Step 2: Convert to fraction form
    38,988.23/53,803.70 = 21,992.42/x
  3. Step 3: Cross multiply
    38,988.23x = 53,803.70 × 21,992.42
  4. Step 4: Simplify right side
    38,988.23x = 1,183,273,188.97
  5. Step 5: Solve for x
    x = 1,183,273,188.97/38,988.23
  6. Step 6: Final answer
    x = 30,349.50

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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.