Home / 20,623.51-28,460.46-11,192.07

Finding the Fourth Proportional to 20,623.51, 28,460.46 and 11,192.07

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Solution

The fourth proportional to 20,623.51, 28,460.46 and 11,192.07 is: 15,445.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623.51 : 28,460.46 = 11,192.07 : x
  2. Step 2: Convert to fraction form
    20,623.51/28,460.46 = 11,192.07/x
  3. Step 3: Cross multiply
    20,623.51x = 28,460.46 × 11,192.07
  4. Step 4: Simplify right side
    20,623.51x = 318,531,609.25
  5. Step 5: Solve for x
    x = 318,531,609.25/20,623.51
  6. Step 6: Final answer
    x = 15,445.07

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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.