Home / 47,138.57-70,718.28-15,558.39

Finding the Fourth Proportional to 47,138.57, 70,718.28 and 15,558.39

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Solution

The fourth proportional to 47,138.57, 70,718.28 and 15,558.39 is: 23,341.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,138.57 : 70,718.28 = 15,558.39 : x
  2. Step 2: Convert to fraction form
    47,138.57/70,718.28 = 15,558.39/x
  3. Step 3: Cross multiply
    47,138.57x = 70,718.28 × 15,558.39
  4. Step 4: Simplify right side
    47,138.57x = 1,100,262,580.37
  5. Step 5: Solve for x
    x = 1,100,262,580.37/47,138.57
  6. Step 6: Final answer
    x = 23,341.03

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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.