Home / 20,723.50-28,598.75-11,292.06

Finding the Fourth Proportional to 20,723.50, 28,598.75 and 11,292.06

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Solution

The fourth proportional to 20,723.50, 28,598.75 and 11,292.06 is: 15,583.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.50 : 28,598.75 = 11,292.06 : x
  2. Step 2: Convert to fraction form
    20,723.50/28,598.75 = 11,292.06/x
  3. Step 3: Cross multiply
    20,723.50x = 28,598.75 × 11,292.06
  4. Step 4: Simplify right side
    20,723.50x = 322,938,800.93
  5. Step 5: Solve for x
    x = 322,938,800.93/20,723.50
  6. Step 6: Final answer
    x = 15,583.22

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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.