Home / 21,096.10-31,644.24-11,750.32

Finding the Fourth Proportional to 21,096.10, 31,644.24 and 11,750.32

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Solution

The fourth proportional to 21,096.10, 31,644.24 and 11,750.32 is: 17,625.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096.10 : 31,644.24 = 11,750.32 : x
  2. Step 2: Convert to fraction form
    21,096.10/31,644.24 = 11,750.32/x
  3. Step 3: Cross multiply
    21,096.10x = 31,644.24 × 11,750.32
  4. Step 4: Simplify right side
    21,096.10x = 371,829,946.16
  5. Step 5: Solve for x
    x = 371,829,946.16/21,096.10
  6. Step 6: Final answer
    x = 17,625.53

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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.