Home / 38,854.81-58,156.89-20,109.06

Finding the Fourth Proportional to 38,854.81, 58,156.89 and 20,109.06

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Solution

The fourth proportional to 38,854.81, 58,156.89 and 20,109.06 is: 30,098.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,854.81 : 58,156.89 = 20,109.06 : x
  2. Step 2: Convert to fraction form
    38,854.81/58,156.89 = 20,109.06/x
  3. Step 3: Cross multiply
    38,854.81x = 58,156.89 × 20,109.06
  4. Step 4: Simplify right side
    38,854.81x = 1,169,480,390.42
  5. Step 5: Solve for x
    x = 1,169,480,390.42/38,854.81
  6. Step 6: Final answer
    x = 30,098.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.