Home / 31,336.40-47,004.60-18,894.80

Finding the Fourth Proportional to 31,336.40, 47,004.60 and 18,894.80

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Solution

The fourth proportional to 31,336.40, 47,004.60 and 18,894.80 is: 28,342.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,336.40 : 47,004.60 = 18,894.80 : x
  2. Step 2: Convert to fraction form
    31,336.40/47,004.60 = 18,894.80/x
  3. Step 3: Cross multiply
    31,336.40x = 47,004.60 × 18,894.80
  4. Step 4: Simplify right side
    31,336.40x = 888,142,516.08
  5. Step 5: Solve for x
    x = 888,142,516.08/31,336.40
  6. Step 6: Final answer
    x = 28,342.20

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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.