Home / 20,567.46-28,381.48-11,615.84

Finding the Fourth Proportional to 20,567.46, 28,381.48 and 11,615.84

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Solution

The fourth proportional to 20,567.46, 28,381.48 and 11,615.84 is: 16,028.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.46 : 28,381.48 = 11,615.84 : x
  2. Step 2: Convert to fraction form
    20,567.46/28,381.48 = 11,615.84/x
  3. Step 3: Cross multiply
    20,567.46x = 28,381.48 × 11,615.84
  4. Step 4: Simplify right side
    20,567.46x = 329,674,730.64
  5. Step 5: Solve for x
    x = 329,674,730.64/20,567.46
  6. Step 6: Final answer
    x = 16,028.95

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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.