Home / 38,089.42-57,137.91-13,126.12

Finding the Fourth Proportional to 38,089.42, 57,137.91 and 13,126.12

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Solution

The fourth proportional to 38,089.42, 57,137.91 and 13,126.12 is: 19,690.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,089.42 : 57,137.91 = 13,126.12 : x
  2. Step 2: Convert to fraction form
    38,089.42/57,137.91 = 13,126.12/x
  3. Step 3: Cross multiply
    38,089.42x = 57,137.91 × 13,126.12
  4. Step 4: Simplify right side
    38,089.42x = 749,999,063.21
  5. Step 5: Solve for x
    x = 749,999,063.21/38,089.42
  6. Step 6: Final answer
    x = 19,690.48

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Double scale
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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.