Home / 38,948.76-53,749.20-21,043.71

Finding the Fourth Proportional to 38,948.76, 53,749.20 and 21,043.71

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Solution

The fourth proportional to 38,948.76, 53,749.20 and 21,043.71 is: 29,040.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,948.76 : 53,749.20 = 21,043.71 : x
  2. Step 2: Convert to fraction form
    38,948.76/53,749.20 = 21,043.71/x
  3. Step 3: Cross multiply
    38,948.76x = 53,749.20 × 21,043.71
  4. Step 4: Simplify right side
    38,948.76x = 1,131,082,577.53
  5. Step 5: Solve for x
    x = 1,131,082,577.53/38,948.76
  6. Step 6: Final answer
    x = 29,040.27

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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.