Home / 14,420.16-21,666.69-13,836.96

Finding the Fourth Proportional to 14,420.16, 21,666.69 and 13,836.96

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Solution

The fourth proportional to 14,420.16, 21,666.69 and 13,836.96 is: 20,790.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420.16 : 21,666.69 = 13,836.96 : x
  2. Step 2: Convert to fraction form
    14,420.16/21,666.69 = 13,836.96/x
  3. Step 3: Cross multiply
    14,420.16x = 21,666.69 × 13,836.96
  4. Step 4: Simplify right side
    14,420.16x = 299,801,122.86
  5. Step 5: Solve for x
    x = 299,801,122.86/14,420.16
  6. Step 6: Final answer
    x = 20,790.42

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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.