Home / 20,749.48-31,104.52-8,277.16

Finding the Fourth Proportional to 20,749.48, 31,104.52 and 8,277.16

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Solution

The fourth proportional to 20,749.48, 31,104.52 and 8,277.16 is: 12,407.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.48 : 31,104.52 = 8,277.16 : x
  2. Step 2: Convert to fraction form
    20,749.48/31,104.52 = 8,277.16/x
  3. Step 3: Cross multiply
    20,749.48x = 31,104.52 × 8,277.16
  4. Step 4: Simplify right side
    20,749.48x = 257,457,088.76
  5. Step 5: Solve for x
    x = 257,457,088.76/20,749.48
  6. Step 6: Final answer
    x = 12,407.88

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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.