Home / 14,133.30-21,167.55-13,809.30

Finding the Fourth Proportional to 14,133.30, 21,167.55 and 13,809.30

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Solution

The fourth proportional to 14,133.30, 21,167.55 and 13,809.30 is: 20,682.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,133.30 : 21,167.55 = 13,809.30 : x
  2. Step 2: Convert to fraction form
    14,133.30/21,167.55 = 13,809.30/x
  3. Step 3: Cross multiply
    14,133.30x = 21,167.55 × 13,809.30
  4. Step 4: Simplify right side
    14,133.30x = 292,309,048.22
  5. Step 5: Solve for x
    x = 292,309,048.22/14,133.30
  6. Step 6: Final answer
    x = 20,682.29

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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.