Home / 36,931.47-55,404.51-13,558.11

Finding the Fourth Proportional to 36,931.47, 55,404.51 and 13,558.11

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Solution

The fourth proportional to 36,931.47, 55,404.51 and 13,558.11 is: 20,339.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,931.47 : 55,404.51 = 13,558.11 : x
  2. Step 2: Convert to fraction form
    36,931.47/55,404.51 = 13,558.11/x
  3. Step 3: Cross multiply
    36,931.47x = 55,404.51 × 13,558.11
  4. Step 4: Simplify right side
    36,931.47x = 751,180,441.08
  5. Step 5: Solve for x
    x = 751,180,441.08/36,931.47
  6. Step 6: Final answer
    x = 20,339.85

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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.