Home / 20,426.04-28,195.08-12,042

Finding the Fourth Proportional to 20,426.04, 28,195.08 and 12,042

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Solution

The fourth proportional to 20,426.04, 28,195.08 and 12,042 is: 16,622.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426.04 : 28,195.08 = 12,042 : x
  2. Step 2: Convert to fraction form
    20,426.04/28,195.08 = 12,042/x
  3. Step 3: Cross multiply
    20,426.04x = 28,195.08 × 12,042
  4. Step 4: Simplify right side
    20,426.04x = 339,525,153.36
  5. Step 5: Solve for x
    x = 339,525,153.36/20,426.04
  6. Step 6: Final answer
    x = 16,622.17

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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.