Home / 31,740.31-47,619.78-14,206.24

Finding the Fourth Proportional to 31,740.31, 47,619.78 and 14,206.24

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Solution

The fourth proportional to 31,740.31, 47,619.78 and 14,206.24 is: 21,313.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,740.31 : 47,619.78 = 14,206.24 : x
  2. Step 2: Convert to fraction form
    31,740.31/47,619.78 = 14,206.24/x
  3. Step 3: Cross multiply
    31,740.31x = 47,619.78 × 14,206.24
  4. Step 4: Simplify right side
    31,740.31x = 676,498,023.43
  5. Step 5: Solve for x
    x = 676,498,023.43/31,740.31
  6. Step 6: Final answer
    x = 21,313.53

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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.