Home / 20,526.40-30,776.76-8,674.04

Finding the Fourth Proportional to 20,526.40, 30,776.76 and 8,674.04

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Solution

The fourth proportional to 20,526.40, 30,776.76 and 8,674.04 is: 13,005.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.40 : 30,776.76 = 8,674.04 : x
  2. Step 2: Convert to fraction form
    20,526.40/30,776.76 = 8,674.04/x
  3. Step 3: Cross multiply
    20,526.40x = 30,776.76 × 8,674.04
  4. Step 4: Simplify right side
    20,526.40x = 266,958,847.31
  5. Step 5: Solve for x
    x = 266,958,847.31/20,526.40
  6. Step 6: Final answer
    x = 13,005.63

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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.