Home / 47,285.21-70,930.25-12,225.17

Finding the Fourth Proportional to 47,285.21, 70,930.25 and 12,225.17

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Solution

The fourth proportional to 47,285.21, 70,930.25 and 12,225.17 is: 18,338.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,285.21 : 70,930.25 = 12,225.17 : x
  2. Step 2: Convert to fraction form
    47,285.21/70,930.25 = 12,225.17/x
  3. Step 3: Cross multiply
    47,285.21x = 70,930.25 × 12,225.17
  4. Step 4: Simplify right side
    47,285.21x = 867,133,948.62
  5. Step 5: Solve for x
    x = 867,133,948.62/47,285.21
  6. Step 6: Final answer
    x = 18,338.38

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1.5x scale

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.