Home / 39,135.88-58,700.70-11,054.80

Finding the Fourth Proportional to 39,135.88, 58,700.70 and 11,054.80

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Solution

The fourth proportional to 39,135.88, 58,700.70 and 11,054.80 is: 16,581.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,135.88 : 58,700.70 = 11,054.80 : x
  2. Step 2: Convert to fraction form
    39,135.88/58,700.70 = 11,054.80/x
  3. Step 3: Cross multiply
    39,135.88x = 58,700.70 × 11,054.80
  4. Step 4: Simplify right side
    39,135.88x = 648,924,379.25
  5. Step 5: Solve for x
    x = 648,924,379.25/39,135.88
  6. Step 6: Final answer
    x = 16,581.32

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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.