Home / 38,948.34-53,747.15-21,956.12

Finding the Fourth Proportional to 38,948.34, 53,747.15 and 21,956.12

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Solution

The fourth proportional to 38,948.34, 53,747.15 and 21,956.12 is: 30,298.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,948.34 : 53,747.15 = 21,956.12 : x
  2. Step 2: Convert to fraction form
    38,948.34/53,747.15 = 21,956.12/x
  3. Step 3: Cross multiply
    38,948.34x = 53,747.15 × 21,956.12
  4. Step 4: Simplify right side
    38,948.34x = 1,180,078,496.54
  5. Step 5: Solve for x
    x = 1,180,078,496.54/38,948.34
  6. Step 6: Final answer
    x = 30,298.56

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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.