Home / 31,371.96-47,070.18-13,829.46

Finding the Fourth Proportional to 31,371.96, 47,070.18 and 13,829.46

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Solution

The fourth proportional to 31,371.96, 47,070.18 and 13,829.46 is: 20,749.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,371.96 : 47,070.18 = 13,829.46 : x
  2. Step 2: Convert to fraction form
    31,371.96/47,070.18 = 13,829.46/x
  3. Step 3: Cross multiply
    31,371.96x = 47,070.18 × 13,829.46
  4. Step 4: Simplify right side
    31,371.96x = 650,955,171.50
  5. Step 5: Solve for x
    x = 650,955,171.50/31,371.96
  6. Step 6: Final answer
    x = 20,749.59

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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.