Home / 20,294.30-28,004.08-13,926.36

Finding the Fourth Proportional to 20,294.30, 28,004.08 and 13,926.36

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Solution

The fourth proportional to 20,294.30, 28,004.08 and 13,926.36 is: 19,216.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.30 : 28,004.08 = 13,926.36 : x
  2. Step 2: Convert to fraction form
    20,294.30/28,004.08 = 13,926.36/x
  3. Step 3: Cross multiply
    20,294.30x = 28,004.08 × 13,926.36
  4. Step 4: Simplify right side
    20,294.30x = 389,994,899.55
  5. Step 5: Solve for x
    x = 389,994,899.55/20,294.30
  6. Step 6: Final answer
    x = 19,216.97

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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.