Home / 47,315.80-70,976.94-12,259

Finding the Fourth Proportional to 47,315.80, 70,976.94 and 12,259

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Solution

The fourth proportional to 47,315.80, 70,976.94 and 12,259 is: 18,389.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,315.80 : 70,976.94 = 12,259 : x
  2. Step 2: Convert to fraction form
    47,315.80/70,976.94 = 12,259/x
  3. Step 3: Cross multiply
    47,315.80x = 70,976.94 × 12,259
  4. Step 4: Simplify right side
    47,315.80x = 870,106,307.46
  5. Step 5: Solve for x
    x = 870,106,307.46/47,315.80
  6. Step 6: Final answer
    x = 18,389.34

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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.