Home / 38,111.40-57,167.10-11,818.80

Finding the Fourth Proportional to 38,111.40, 57,167.10 and 11,818.80

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Solution

The fourth proportional to 38,111.40, 57,167.10 and 11,818.80 is: 17,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,111.40 : 57,167.10 = 11,818.80 : x
  2. Step 2: Convert to fraction form
    38,111.40/57,167.10 = 11,818.80/x
  3. Step 3: Cross multiply
    38,111.40x = 57,167.10 × 11,818.80
  4. Step 4: Simplify right side
    38,111.40x = 675,646,521.48
  5. Step 5: Solve for x
    x = 675,646,521.48/38,111.40
  6. Step 6: Final answer
    x = 17,728.20

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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.