Home / 31,630.26-47,408.34-12,898.60

Finding the Fourth Proportional to 31,630.26, 47,408.34 and 12,898.60

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Solution

The fourth proportional to 31,630.26, 47,408.34 and 12,898.60 is: 19,332.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,630.26 : 47,408.34 = 12,898.60 : x
  2. Step 2: Convert to fraction form
    31,630.26/47,408.34 = 12,898.60/x
  3. Step 3: Cross multiply
    31,630.26x = 47,408.34 × 12,898.60
  4. Step 4: Simplify right side
    31,630.26x = 611,501,214.32
  5. Step 5: Solve for x
    x = 611,501,214.32/31,630.26
  6. Step 6: Final answer
    x = 19,332.79

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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.