Home / 47,356.76-71,038.64-13,621.42

Finding the Fourth Proportional to 47,356.76, 71,038.64 and 13,621.42

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Solution

The fourth proportional to 47,356.76, 71,038.64 and 13,621.42 is: 20,433.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,356.76 : 71,038.64 = 13,621.42 : x
  2. Step 2: Convert to fraction form
    47,356.76/71,038.64 = 13,621.42/x
  3. Step 3: Cross multiply
    47,356.76x = 71,038.64 × 13,621.42
  4. Step 4: Simplify right side
    47,356.76x = 967,647,139.46
  5. Step 5: Solve for x
    x = 967,647,139.46/47,356.76
  6. Step 6: Final answer
    x = 20,433.13

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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.