Home / 20,284.32-30,408.72-9,749.08

Finding the Fourth Proportional to 20,284.32, 30,408.72 and 9,749.08

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Solution

The fourth proportional to 20,284.32, 30,408.72 and 9,749.08 is: 14,615.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.32 : 30,408.72 = 9,749.08 : x
  2. Step 2: Convert to fraction form
    20,284.32/30,408.72 = 9,749.08/x
  3. Step 3: Cross multiply
    20,284.32x = 30,408.72 × 9,749.08
  4. Step 4: Simplify right side
    20,284.32x = 296,457,043.98
  5. Step 5: Solve for x
    x = 296,457,043.98/20,284.32
  6. Step 6: Final answer
    x = 14,615.08

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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.