Home / 20,554.66-30,790.61-9,445.92

Finding the Fourth Proportional to 20,554.66, 30,790.61 and 9,445.92

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Solution

The fourth proportional to 20,554.66, 30,790.61 and 9,445.92 is: 14,149.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.66 : 30,790.61 = 9,445.92 : x
  2. Step 2: Convert to fraction form
    20,554.66/30,790.61 = 9,445.92/x
  3. Step 3: Cross multiply
    20,554.66x = 30,790.61 × 9,445.92
  4. Step 4: Simplify right side
    20,554.66x = 290,845,638.81
  5. Step 5: Solve for x
    x = 290,845,638.81/20,554.66
  6. Step 6: Final answer
    x = 14,149.86

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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.