Home / 20,214.72-27,880.20-14,548.56

Finding the Fourth Proportional to 20,214.72, 27,880.20 and 14,548.56

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Solution

The fourth proportional to 20,214.72, 27,880.20 and 14,548.56 is: 20,065.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,214.72 : 27,880.20 = 14,548.56 : x
  2. Step 2: Convert to fraction form
    20,214.72/27,880.20 = 14,548.56/x
  3. Step 3: Cross multiply
    20,214.72x = 27,880.20 × 14,548.56
  4. Step 4: Simplify right side
    20,214.72x = 405,616,762.51
  5. Step 5: Solve for x
    x = 405,616,762.51/20,214.72
  6. Step 6: Final answer
    x = 20,065.42

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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.