Home / 38,398.12-57,490.14-19,637.80

Finding the Fourth Proportional to 38,398.12, 57,490.14 and 19,637.80

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Solution

The fourth proportional to 38,398.12, 57,490.14 and 19,637.80 is: 29,401.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,398.12 : 57,490.14 = 19,637.80 : x
  2. Step 2: Convert to fraction form
    38,398.12/57,490.14 = 19,637.80/x
  3. Step 3: Cross multiply
    38,398.12x = 57,490.14 × 19,637.80
  4. Step 4: Simplify right side
    38,398.12x = 1,128,979,871.29
  5. Step 5: Solve for x
    x = 1,128,979,871.29/38,398.12
  6. Step 6: Final answer
    x = 29,401.96

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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.