Home / 38,166.87-52,668.86-21,398.79

Finding the Fourth Proportional to 38,166.87, 52,668.86 and 21,398.79

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Solution

The fourth proportional to 38,166.87, 52,668.86 and 21,398.79 is: 29,529.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,166.87 : 52,668.86 = 21,398.79 : x
  2. Step 2: Convert to fraction form
    38,166.87/52,668.86 = 21,398.79/x
  3. Step 3: Cross multiply
    38,166.87x = 52,668.86 × 21,398.79
  4. Step 4: Simplify right side
    38,166.87x = 1,127,049,767.69
  5. Step 5: Solve for x
    x = 1,127,049,767.69/38,166.87
  6. Step 6: Final answer
    x = 29,529.53

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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.