Home / 38,389.04-57,558.72-18,387.80

Finding the Fourth Proportional to 38,389.04, 57,558.72 and 18,387.80

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Solution

The fourth proportional to 38,389.04, 57,558.72 and 18,387.80 is: 27,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,389.04 : 57,558.72 = 18,387.80 : x
  2. Step 2: Convert to fraction form
    38,389.04/57,558.72 = 18,387.80/x
  3. Step 3: Cross multiply
    38,389.04x = 57,558.72 × 18,387.80
  4. Step 4: Simplify right side
    38,389.04x = 1,058,378,231.62
  5. Step 5: Solve for x
    x = 1,058,378,231.62/38,389.04
  6. Step 6: Final answer
    x = 27,569.80

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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.