Home / 38,666.88-57,987.98-12,365.38

Finding the Fourth Proportional to 38,666.88, 57,987.98 and 12,365.38

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Solution

The fourth proportional to 38,666.88, 57,987.98 and 12,365.38 is: 18,544.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,666.88 : 57,987.98 = 12,365.38 : x
  2. Step 2: Convert to fraction form
    38,666.88/57,987.98 = 12,365.38/x
  3. Step 3: Cross multiply
    38,666.88x = 57,987.98 × 12,365.38
  4. Step 4: Simplify right side
    38,666.88x = 717,043,408.13
  5. Step 5: Solve for x
    x = 717,043,408.13/38,666.88
  6. Step 6: Final answer
    x = 18,544.12

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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.