Home / 20,656.04-28,503.09-11,703.38

Finding the Fourth Proportional to 20,656.04, 28,503.09 and 11,703.38

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Solution

The fourth proportional to 20,656.04, 28,503.09 and 11,703.38 is: 16,149.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656.04 : 28,503.09 = 11,703.38 : x
  2. Step 2: Convert to fraction form
    20,656.04/28,503.09 = 11,703.38/x
  3. Step 3: Cross multiply
    20,656.04x = 28,503.09 × 11,703.38
  4. Step 4: Simplify right side
    20,656.04x = 333,582,350.93
  5. Step 5: Solve for x
    x = 333,582,350.93/20,656.04
  6. Step 6: Final answer
    x = 16,149.39

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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.