Home / 20,724.84-28,593.26-12,655.55

Finding the Fourth Proportional to 20,724.84, 28,593.26 and 12,655.55

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Solution

The fourth proportional to 20,724.84, 28,593.26 and 12,655.55 is: 17,460.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.84 : 28,593.26 = 12,655.55 : x
  2. Step 2: Convert to fraction form
    20,724.84/28,593.26 = 12,655.55/x
  3. Step 3: Cross multiply
    20,724.84x = 28,593.26 × 12,655.55
  4. Step 4: Simplify right side
    20,724.84x = 361,863,536.36
  5. Step 5: Solve for x
    x = 361,863,536.36/20,724.84
  6. Step 6: Final answer
    x = 17,460.37

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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.