Home / 20,724.74-28,600.35-11,293.46

Finding the Fourth Proportional to 20,724.74, 28,600.35 and 11,293.46

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Solution

The fourth proportional to 20,724.74, 28,600.35 and 11,293.46 is: 15,585.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.74 : 28,600.35 = 11,293.46 : x
  2. Step 2: Convert to fraction form
    20,724.74/28,600.35 = 11,293.46/x
  3. Step 3: Cross multiply
    20,724.74x = 28,600.35 × 11,293.46
  4. Step 4: Simplify right side
    20,724.74x = 322,996,908.71
  5. Step 5: Solve for x
    x = 322,996,908.71/20,724.74
  6. Step 6: Final answer
    x = 15,585.09

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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.