Home / 31,955.76-47,943.36-14,420.88

Finding the Fourth Proportional to 31,955.76, 47,943.36 and 14,420.88

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Solution

The fourth proportional to 31,955.76, 47,943.36 and 14,420.88 is: 21,635.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,955.76 : 47,943.36 = 14,420.88 : x
  2. Step 2: Convert to fraction form
    31,955.76/47,943.36 = 14,420.88/x
  3. Step 3: Cross multiply
    31,955.76x = 47,943.36 × 14,420.88
  4. Step 4: Simplify right side
    31,955.76x = 691,385,441.36
  5. Step 5: Solve for x
    x = 691,385,441.36/31,955.76
  6. Step 6: Final answer
    x = 21,635.71

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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.