Home / 35,946.40-53,951.60-21,136.80

Finding the Fourth Proportional to 35,946.40, 53,951.60 and 21,136.80

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Solution

The fourth proportional to 35,946.40, 53,951.60 and 21,136.80 is: 31,724.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,946.40 : 53,951.60 = 21,136.80 : x
  2. Step 2: Convert to fraction form
    35,946.40/53,951.60 = 21,136.80/x
  3. Step 3: Cross multiply
    35,946.40x = 53,951.60 × 21,136.80
  4. Step 4: Simplify right side
    35,946.40x = 1,140,364,178.88
  5. Step 5: Solve for x
    x = 1,140,364,178.88/35,946.40
  6. Step 6: Final answer
    x = 31,724.02

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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.