Home / 46,990.20-70,512.82-18,905.88

Finding the Fourth Proportional to 46,990.20, 70,512.82 and 18,905.88

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Solution

The fourth proportional to 46,990.20, 70,512.82 and 18,905.88 is: 28,369.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,990.20 : 70,512.82 = 18,905.88 : x
  2. Step 2: Convert to fraction form
    46,990.20/70,512.82 = 18,905.88/x
  3. Step 3: Cross multiply
    46,990.20x = 70,512.82 × 18,905.88
  4. Step 4: Simplify right side
    46,990.20x = 1,333,106,913.38
  5. Step 5: Solve for x
    x = 1,333,106,913.38/46,990.20
  6. Step 6: Final answer
    x = 28,369.89

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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.