Home / 20,553.04-28,363.08-11,600.08

Finding the Fourth Proportional to 20,553.04, 28,363.08 and 11,600.08

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Solution

The fourth proportional to 20,553.04, 28,363.08 and 11,600.08 is: 16,008.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.04 : 28,363.08 = 11,600.08 : x
  2. Step 2: Convert to fraction form
    20,553.04/28,363.08 = 11,600.08/x
  3. Step 3: Cross multiply
    20,553.04x = 28,363.08 × 11,600.08
  4. Step 4: Simplify right side
    20,553.04x = 329,013,997.05
  5. Step 5: Solve for x
    x = 329,013,997.05/20,553.04
  6. Step 6: Final answer
    x = 16,008.05

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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.