Home / 47,736.84-71,599.65-12,679.20

Finding the Fourth Proportional to 47,736.84, 71,599.65 and 12,679.20

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Solution

The fourth proportional to 47,736.84, 71,599.65 and 12,679.20 is: 19,017.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,736.84 : 71,599.65 = 12,679.20 : x
  2. Step 2: Convert to fraction form
    47,736.84/71,599.65 = 12,679.20/x
  3. Step 3: Cross multiply
    47,736.84x = 71,599.65 × 12,679.20
  4. Step 4: Simplify right side
    47,736.84x = 907,826,282.28
  5. Step 5: Solve for x
    x = 907,826,282.28/47,736.84
  6. Step 6: Final answer
    x = 19,017.31

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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.