Home / 31,382.97-47,070.36-13,848.71

Finding the Fourth Proportional to 31,382.97, 47,070.36 and 13,848.71

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Solution

The fourth proportional to 31,382.97, 47,070.36 and 13,848.71 is: 20,771.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,382.97 : 47,070.36 = 13,848.71 : x
  2. Step 2: Convert to fraction form
    31,382.97/47,070.36 = 13,848.71/x
  3. Step 3: Cross multiply
    31,382.97x = 47,070.36 × 13,848.71
  4. Step 4: Simplify right side
    31,382.97x = 651,863,529.88
  5. Step 5: Solve for x
    x = 651,863,529.88/31,382.97
  6. Step 6: Final answer
    x = 20,771.25

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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.