Home / 20,762.04-28,650.72-11,808.28

Finding the Fourth Proportional to 20,762.04, 28,650.72 and 11,808.28

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Solution

The fourth proportional to 20,762.04, 28,650.72 and 11,808.28 is: 16,294.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.04 : 28,650.72 = 11,808.28 : x
  2. Step 2: Convert to fraction form
    20,762.04/28,650.72 = 11,808.28/x
  3. Step 3: Cross multiply
    20,762.04x = 28,650.72 × 11,808.28
  4. Step 4: Simplify right side
    20,762.04x = 338,315,723.96
  5. Step 5: Solve for x
    x = 338,315,723.96/20,762.04
  6. Step 6: Final answer
    x = 16,294.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.