Home / 31,379.52-47,077.44-11,663.76

Finding the Fourth Proportional to 31,379.52, 47,077.44 and 11,663.76

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Solution

The fourth proportional to 31,379.52, 47,077.44 and 11,663.76 is: 17,498.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,379.52 : 47,077.44 = 11,663.76 : x
  2. Step 2: Convert to fraction form
    31,379.52/47,077.44 = 11,663.76/x
  3. Step 3: Cross multiply
    31,379.52x = 47,077.44 × 11,663.76
  4. Step 4: Simplify right side
    31,379.52x = 549,099,961.57
  5. Step 5: Solve for x
    x = 549,099,961.57/31,379.52
  6. Step 6: Final answer
    x = 17,498.67

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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.