Home / 38,886.40-58,291.20-19,148.80

Finding the Fourth Proportional to 38,886.40, 58,291.20 and 19,148.80

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Solution

The fourth proportional to 38,886.40, 58,291.20 and 19,148.80 is: 28,704.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,886.40 : 58,291.20 = 19,148.80 : x
  2. Step 2: Convert to fraction form
    38,886.40/58,291.20 = 19,148.80/x
  3. Step 3: Cross multiply
    38,886.40x = 58,291.20 × 19,148.80
  4. Step 4: Simplify right side
    38,886.40x = 1,116,206,530.56
  5. Step 5: Solve for x
    x = 1,116,206,530.56/38,886.40
  6. Step 6: Final answer
    x = 28,704.29

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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.