Home / 34,730.78-47,928.51-18,815.09

Finding the Fourth Proportional to 34,730.78, 47,928.51 and 18,815.09

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Solution

The fourth proportional to 34,730.78, 47,928.51 and 18,815.09 is: 25,964.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,730.78 : 47,928.51 = 18,815.09 : x
  2. Step 2: Convert to fraction form
    34,730.78/47,928.51 = 18,815.09/x
  3. Step 3: Cross multiply
    34,730.78x = 47,928.51 × 18,815.09
  4. Step 4: Simplify right side
    34,730.78x = 901,778,989.57
  5. Step 5: Solve for x
    x = 901,778,989.57/34,730.78
  6. Step 6: Final answer
    x = 25,964.84

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1.5x scale

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.