Home / 31,366.14-47,048.59-12,645.78

Finding the Fourth Proportional to 31,366.14, 47,048.59 and 12,645.78

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Solution

The fourth proportional to 31,366.14, 47,048.59 and 12,645.78 is: 18,968.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,366.14 : 47,048.59 = 12,645.78 : x
  2. Step 2: Convert to fraction form
    31,366.14/47,048.59 = 12,645.78/x
  3. Step 3: Cross multiply
    31,366.14x = 47,048.59 × 12,645.78
  4. Step 4: Simplify right side
    31,366.14x = 594,966,118.45
  5. Step 5: Solve for x
    x = 594,966,118.45/31,366.14
  6. Step 6: Final answer
    x = 18,968.42

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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.