Home / 21,645.37-29,865.86-14,090.89

Finding the Fourth Proportional to 21,645.37, 29,865.86 and 14,090.89

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Solution

The fourth proportional to 21,645.37, 29,865.86 and 14,090.89 is: 19,442.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,645.37 : 29,865.86 = 14,090.89 : x
  2. Step 2: Convert to fraction form
    21,645.37/29,865.86 = 14,090.89/x
  3. Step 3: Cross multiply
    21,645.37x = 29,865.86 × 14,090.89
  4. Step 4: Simplify right side
    21,645.37x = 420,836,548.02
  5. Step 5: Solve for x
    x = 420,836,548.02/21,645.37
  6. Step 6: Final answer
    x = 19,442.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.