Home / 31,680.32-47,504.61-11,688.84

Finding the Fourth Proportional to 31,680.32, 47,504.61 and 11,688.84

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Solution

The fourth proportional to 31,680.32, 47,504.61 and 11,688.84 is: 17,527.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,680.32 : 47,504.61 = 11,688.84 : x
  2. Step 2: Convert to fraction form
    31,680.32/47,504.61 = 11,688.84/x
  3. Step 3: Cross multiply
    31,680.32x = 47,504.61 × 11,688.84
  4. Step 4: Simplify right side
    31,680.32x = 555,273,785.55
  5. Step 5: Solve for x
    x = 555,273,785.55/31,680.32
  6. Step 6: Final answer
    x = 17,527.41

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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.