Home / 47,800.12-65,946.54-28,930.36

Finding the Fourth Proportional to 47,800.12, 65,946.54 and 28,930.36

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Solution

The fourth proportional to 47,800.12, 65,946.54 and 28,930.36 is: 39,913.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,800.12 : 65,946.54 = 28,930.36 : x
  2. Step 2: Convert to fraction form
    47,800.12/65,946.54 = 28,930.36/x
  3. Step 3: Cross multiply
    47,800.12x = 65,946.54 × 28,930.36
  4. Step 4: Simplify right side
    47,800.12x = 1,907,857,142.95
  5. Step 5: Solve for x
    x = 1,907,857,142.95/47,800.12
  6. Step 6: Final answer
    x = 39,913.23

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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.