Home / 28,946.60-43,409.10-11,412.80

Finding the Fourth Proportional to 28,946.60, 43,409.10 and 11,412.80

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Solution

The fourth proportional to 28,946.60, 43,409.10 and 11,412.80 is: 17,114.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,946.60 : 43,409.10 = 11,412.80 : x
  2. Step 2: Convert to fraction form
    28,946.60/43,409.10 = 11,412.80/x
  3. Step 3: Cross multiply
    28,946.60x = 43,409.10 × 11,412.80
  4. Step 4: Simplify right side
    28,946.60x = 495,419,376.48
  5. Step 5: Solve for x
    x = 495,419,376.48/28,946.60
  6. Step 6: Final answer
    x = 17,114.94

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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.