Home / 31,749.57-47,633.60-14,215.30

Finding the Fourth Proportional to 31,749.57, 47,633.60 and 14,215.30

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Solution

The fourth proportional to 31,749.57, 47,633.60 and 14,215.30 is: 21,327.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,749.57 : 47,633.60 = 14,215.30 : x
  2. Step 2: Convert to fraction form
    31,749.57/47,633.60 = 14,215.30/x
  3. Step 3: Cross multiply
    31,749.57x = 47,633.60 × 14,215.30
  4. Step 4: Simplify right side
    31,749.57x = 677,125,830.53
  5. Step 5: Solve for x
    x = 677,125,830.53/31,749.57
  6. Step 6: Final answer
    x = 21,327.09

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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.