Home / 21,001.96-28,948.92-14,193.85

Finding the Fourth Proportional to 21,001.96, 28,948.92 and 14,193.85

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Solution

The fourth proportional to 21,001.96, 28,948.92 and 14,193.85 is: 19,564.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,001.96 : 28,948.92 = 14,193.85 : x
  2. Step 2: Convert to fraction form
    21,001.96/28,948.92 = 14,193.85/x
  3. Step 3: Cross multiply
    21,001.96x = 28,948.92 × 14,193.85
  4. Step 4: Simplify right side
    21,001.96x = 410,896,628.14
  5. Step 5: Solve for x
    x = 410,896,628.14/21,001.96
  6. Step 6: Final answer
    x = 19,564.68

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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.