Home / 47,284.58-65,279.37-31,390.76

Finding the Fourth Proportional to 47,284.58, 65,279.37 and 31,390.76

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Solution

The fourth proportional to 47,284.58, 65,279.37 and 31,390.76 is: 43,336.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,284.58 : 65,279.37 = 31,390.76 : x
  2. Step 2: Convert to fraction form
    47,284.58/65,279.37 = 31,390.76/x
  3. Step 3: Cross multiply
    47,284.58x = 65,279.37 × 31,390.76
  4. Step 4: Simplify right side
    47,284.58x = 2,049,169,036.62
  5. Step 5: Solve for x
    x = 2,049,169,036.62/47,284.58
  6. Step 6: Final answer
    x = 43,336.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.