Home / 21,794.55-30,085.64-18,454.68

Finding the Fourth Proportional to 21,794.55, 30,085.64 and 18,454.68

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Solution

The fourth proportional to 21,794.55, 30,085.64 and 18,454.68 is: 25,475.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,794.55 : 30,085.64 = 18,454.68 : x
  2. Step 2: Convert to fraction form
    21,794.55/30,085.64 = 18,454.68/x
  3. Step 3: Cross multiply
    21,794.55x = 30,085.64 × 18,454.68
  4. Step 4: Simplify right side
    21,794.55x = 555,220,766.52
  5. Step 5: Solve for x
    x = 555,220,766.52/21,794.55
  6. Step 6: Final answer
    x = 25,475.21

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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.