Home / 21,902.95-30,226.69-12,342.93

Finding the Fourth Proportional to 21,902.95, 30,226.69 and 12,342.93

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Solution

The fourth proportional to 21,902.95, 30,226.69 and 12,342.93 is: 17,033.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,902.95 : 30,226.69 = 12,342.93 : x
  2. Step 2: Convert to fraction form
    21,902.95/30,226.69 = 12,342.93/x
  3. Step 3: Cross multiply
    21,902.95x = 30,226.69 × 12,342.93
  4. Step 4: Simplify right side
    21,902.95x = 373,085,918.80
  5. Step 5: Solve for x
    x = 373,085,918.80/21,902.95
  6. Step 6: Final answer
    x = 17,033.59

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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.