Home / 21,283.36-31,930.80-7,433.44

Finding the Fourth Proportional to 21,283.36, 31,930.80 and 7,433.44

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Solution

The fourth proportional to 21,283.36, 31,930.80 and 7,433.44 is: 11,152.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283.36 : 31,930.80 = 7,433.44 : x
  2. Step 2: Convert to fraction form
    21,283.36/31,930.80 = 7,433.44/x
  3. Step 3: Cross multiply
    21,283.36x = 31,930.80 × 7,433.44
  4. Step 4: Simplify right side
    21,283.36x = 237,355,685.95
  5. Step 5: Solve for x
    x = 237,355,685.95/21,283.36
  6. Step 6: Final answer
    x = 11,152.17

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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.