Home / 20,553.94-28,365.93-11,602.21

Finding the Fourth Proportional to 20,553.94, 28,365.93 and 11,602.21

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Solution

The fourth proportional to 20,553.94, 28,365.93 and 11,602.21 is: 16,011.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.94 : 28,365.93 = 11,602.21 : x
  2. Step 2: Convert to fraction form
    20,553.94/28,365.93 = 11,602.21/x
  3. Step 3: Cross multiply
    20,553.94x = 28,365.93 × 11,602.21
  4. Step 4: Simplify right side
    20,553.94x = 329,107,476.71
  5. Step 5: Solve for x
    x = 329,107,476.71/20,553.94
  6. Step 6: Final answer
    x = 16,011.89

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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.