Home / 39,408.20-59,112.38-13,113.18

Finding the Fourth Proportional to 39,408.20, 59,112.38 and 13,113.18

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Solution

The fourth proportional to 39,408.20, 59,112.38 and 13,113.18 is: 19,669.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,408.20 : 59,112.38 = 13,113.18 : x
  2. Step 2: Convert to fraction form
    39,408.20/59,112.38 = 13,113.18/x
  3. Step 3: Cross multiply
    39,408.20x = 59,112.38 × 13,113.18
  4. Step 4: Simplify right side
    39,408.20x = 775,151,279.17
  5. Step 5: Solve for x
    x = 775,151,279.17/39,408.20
  6. Step 6: Final answer
    x = 19,669.80

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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.