Home / 22,313.52-30,789.18-12,880.26

Finding the Fourth Proportional to 22,313.52, 30,789.18 and 12,880.26

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Solution

The fourth proportional to 22,313.52, 30,789.18 and 12,880.26 is: 17,772.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,313.52 : 30,789.18 = 12,880.26 : x
  2. Step 2: Convert to fraction form
    22,313.52/30,789.18 = 12,880.26/x
  3. Step 3: Cross multiply
    22,313.52x = 30,789.18 × 12,880.26
  4. Step 4: Simplify right side
    22,313.52x = 396,572,643.59
  5. Step 5: Solve for x
    x = 396,572,643.59/22,313.52
  6. Step 6: Final answer
    x = 17,772.75

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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.