Home / 47,488.88-71,237.27-12,428.44

Finding the Fourth Proportional to 47,488.88, 71,237.27 and 12,428.44

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Solution

The fourth proportional to 47,488.88, 71,237.27 and 12,428.44 is: 18,643.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,488.88 : 71,237.27 = 12,428.44 : x
  2. Step 2: Convert to fraction form
    47,488.88/71,237.27 = 12,428.44/x
  3. Step 3: Cross multiply
    47,488.88x = 71,237.27 × 12,428.44
  4. Step 4: Simplify right side
    47,488.88x = 885,367,988.94
  5. Step 5: Solve for x
    x = 885,367,988.94/47,488.88
  6. Step 6: Final answer
    x = 18,643.69

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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.