Home / 18,897.24-28,455.72-14,001.60

Finding the Fourth Proportional to 18,897.24, 28,455.72 and 14,001.60

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Solution

The fourth proportional to 18,897.24, 28,455.72 and 14,001.60 is: 21,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897.24 : 28,455.72 = 14,001.60 : x
  2. Step 2: Convert to fraction form
    18,897.24/28,455.72 = 14,001.60/x
  3. Step 3: Cross multiply
    18,897.24x = 28,455.72 × 14,001.60
  4. Step 4: Simplify right side
    18,897.24x = 398,425,609.15
  5. Step 5: Solve for x
    x = 398,425,609.15/18,897.24
  6. Step 6: Final answer
    x = 21,083.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.