Home / 21,254.36-31,844.60-14,915.80

Finding the Fourth Proportional to 21,254.36, 31,844.60 and 14,915.80

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Solution

The fourth proportional to 21,254.36, 31,844.60 and 14,915.80 is: 22,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,254.36 : 31,844.60 = 14,915.80 : x
  2. Step 2: Convert to fraction form
    21,254.36/31,844.60 = 14,915.80/x
  3. Step 3: Cross multiply
    21,254.36x = 31,844.60 × 14,915.80
  4. Step 4: Simplify right side
    21,254.36x = 474,987,684.68
  5. Step 5: Solve for x
    x = 474,987,684.68/21,254.36
  6. Step 6: Final answer
    x = 22,347.78

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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.