Home / 20,633.90-30,928.76-9,527.66

Finding the Fourth Proportional to 20,633.90, 30,928.76 and 9,527.66

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Solution

The fourth proportional to 20,633.90, 30,928.76 and 9,527.66 is: 14,281.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,633.90 : 30,928.76 = 9,527.66 : x
  2. Step 2: Convert to fraction form
    20,633.90/30,928.76 = 9,527.66/x
  3. Step 3: Cross multiply
    20,633.90x = 30,928.76 × 9,527.66
  4. Step 4: Simplify right side
    20,633.90x = 294,678,709.50
  5. Step 5: Solve for x
    x = 294,678,709.50/20,633.90
  6. Step 6: Final answer
    x = 14,281.29

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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.