Home / 38,347.92-52,920.82-21,351.28

Finding the Fourth Proportional to 38,347.92, 52,920.82 and 21,351.28

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Solution

The fourth proportional to 38,347.92, 52,920.82 and 21,351.28 is: 29,465.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,347.92 : 52,920.82 = 21,351.28 : x
  2. Step 2: Convert to fraction form
    38,347.92/52,920.82 = 21,351.28/x
  3. Step 3: Cross multiply
    38,347.92x = 52,920.82 × 21,351.28
  4. Step 4: Simplify right side
    38,347.92x = 1,129,927,245.65
  5. Step 5: Solve for x
    x = 1,129,927,245.65/38,347.92
  6. Step 6: Final answer
    x = 29,465.15

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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.