Home / 38,590.78-57,845.13-18,587.80

Finding the Fourth Proportional to 38,590.78, 57,845.13 and 18,587.80

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Solution

The fourth proportional to 38,590.78, 57,845.13 and 18,587.80 is: 27,861.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,590.78 : 57,845.13 = 18,587.80 : x
  2. Step 2: Convert to fraction form
    38,590.78/57,845.13 = 18,587.80/x
  3. Step 3: Cross multiply
    38,590.78x = 57,845.13 × 18,587.80
  4. Step 4: Simplify right side
    38,590.78x = 1,075,213,707.41
  5. Step 5: Solve for x
    x = 1,075,213,707.41/38,590.78
  6. Step 6: Final answer
    x = 27,861.93

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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.