Home / 19,114.28-28,666.86-8,021.18

Finding the Fourth Proportional to 19,114.28, 28,666.86 and 8,021.18

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Solution

The fourth proportional to 19,114.28, 28,666.86 and 8,021.18 is: 12,029.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,114.28 : 28,666.86 = 8,021.18 : x
  2. Step 2: Convert to fraction form
    19,114.28/28,666.86 = 8,021.18/x
  3. Step 3: Cross multiply
    19,114.28x = 28,666.86 × 8,021.18
  4. Step 4: Simplify right side
    19,114.28x = 229,941,969.55
  5. Step 5: Solve for x
    x = 229,941,969.55/19,114.28
  6. Step 6: Final answer
    x = 12,029.85

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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.