Home / 38,609.62-53,278.35-21,609.98

Finding the Fourth Proportional to 38,609.62, 53,278.35 and 21,609.98

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Solution

The fourth proportional to 38,609.62, 53,278.35 and 21,609.98 is: 29,820.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,609.62 : 53,278.35 = 21,609.98 : x
  2. Step 2: Convert to fraction form
    38,609.62/53,278.35 = 21,609.98/x
  3. Step 3: Cross multiply
    38,609.62x = 53,278.35 × 21,609.98
  4. Step 4: Simplify right side
    38,609.62x = 1,151,344,077.93
  5. Step 5: Solve for x
    x = 1,151,344,077.93/38,609.62
  6. Step 6: Final answer
    x = 29,820.13

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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.