Home / 34,730.05-47,926.47-20,389.64

Finding the Fourth Proportional to 34,730.05, 47,926.47 and 20,389.64

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Solution

The fourth proportional to 34,730.05, 47,926.47 and 20,389.64 is: 28,137.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,730.05 : 47,926.47 = 20,389.64 : x
  2. Step 2: Convert to fraction form
    34,730.05/47,926.47 = 20,389.64/x
  3. Step 3: Cross multiply
    34,730.05x = 47,926.47 × 20,389.64
  4. Step 4: Simplify right side
    34,730.05x = 977,203,469.77
  5. Step 5: Solve for x
    x = 977,203,469.77/34,730.05
  6. Step 6: Final answer
    x = 28,137.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.