Home / 31,628.22-47,445.04-8,254.64

Finding the Fourth Proportional to 31,628.22, 47,445.04 and 8,254.64

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Solution

The fourth proportional to 31,628.22, 47,445.04 and 8,254.64 is: 12,382.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,628.22 : 47,445.04 = 8,254.64 : x
  2. Step 2: Convert to fraction form
    31,628.22/47,445.04 = 8,254.64/x
  3. Step 3: Cross multiply
    31,628.22x = 47,445.04 × 8,254.64
  4. Step 4: Simplify right side
    31,628.22x = 391,641,724.99
  5. Step 5: Solve for x
    x = 391,641,724.99/31,628.22
  6. Step 6: Final answer
    x = 12,382.67

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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.