Home / 47,013.09-70,519.80-11,952.75

Finding the Fourth Proportional to 47,013.09, 70,519.80 and 11,952.75

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Solution

The fourth proportional to 47,013.09, 70,519.80 and 11,952.75 is: 17,929.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,013.09 : 70,519.80 = 11,952.75 : x
  2. Step 2: Convert to fraction form
    47,013.09/70,519.80 = 11,952.75/x
  3. Step 3: Cross multiply
    47,013.09x = 70,519.80 × 11,952.75
  4. Step 4: Simplify right side
    47,013.09x = 842,905,539.45
  5. Step 5: Solve for x
    x = 842,905,539.45/47,013.09
  6. Step 6: Final answer
    x = 17,929.17

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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.