Home / 20,513.36-28,307.99-12,014.43

Finding the Fourth Proportional to 20,513.36, 28,307.99 and 12,014.43

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Solution

The fourth proportional to 20,513.36, 28,307.99 and 12,014.43 is: 16,579.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,513.36 : 28,307.99 = 12,014.43 : x
  2. Step 2: Convert to fraction form
    20,513.36/28,307.99 = 12,014.43/x
  3. Step 3: Cross multiply
    20,513.36x = 28,307.99 × 12,014.43
  4. Step 4: Simplify right side
    20,513.36x = 340,104,304.22
  5. Step 5: Solve for x
    x = 340,104,304.22/20,513.36
  6. Step 6: Final answer
    x = 16,579.65

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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.