Home / 31,630.20-47,445.62-12,905.24

Finding the Fourth Proportional to 31,630.20, 47,445.62 and 12,905.24

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Solution

The fourth proportional to 31,630.20, 47,445.62 and 12,905.24 is: 19,357.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,630.20 : 47,445.62 = 12,905.24 : x
  2. Step 2: Convert to fraction form
    31,630.20/47,445.62 = 12,905.24/x
  3. Step 3: Cross multiply
    31,630.20x = 47,445.62 × 12,905.24
  4. Step 4: Simplify right side
    31,630.20x = 612,296,811.29
  5. Step 5: Solve for x
    x = 612,296,811.29/31,630.20
  6. Step 6: Final answer
    x = 19,357.98

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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.