Home / 20,307.12-28,023.93-11,814.27

Finding the Fourth Proportional to 20,307.12, 28,023.93 and 11,814.27

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Solution

The fourth proportional to 20,307.12, 28,023.93 and 11,814.27 is: 16,303.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,307.12 : 28,023.93 = 11,814.27 : x
  2. Step 2: Convert to fraction form
    20,307.12/28,023.93 = 11,814.27/x
  3. Step 3: Cross multiply
    20,307.12x = 28,023.93 × 11,814.27
  4. Step 4: Simplify right side
    20,307.12x = 331,082,275.48
  5. Step 5: Solve for x
    x = 331,082,275.48/20,307.12
  6. Step 6: Final answer
    x = 16,303.75

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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.