Home / 38,790.67-58,131.76-20,982.88

Finding the Fourth Proportional to 38,790.67, 58,131.76 and 20,982.88

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Solution

The fourth proportional to 38,790.67, 58,131.76 and 20,982.88 is: 31,444.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,790.67 : 58,131.76 = 20,982.88 : x
  2. Step 2: Convert to fraction form
    38,790.67/58,131.76 = 20,982.88/x
  3. Step 3: Cross multiply
    38,790.67x = 58,131.76 × 20,982.88
  4. Step 4: Simplify right side
    38,790.67x = 1,219,771,639.35
  5. Step 5: Solve for x
    x = 1,219,771,639.35/38,790.67
  6. Step 6: Final answer
    x = 31,444.98

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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.