Home / 21,853.65-30,157.75-12,292.82

Finding the Fourth Proportional to 21,853.65, 30,157.75 and 12,292.82

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Solution

The fourth proportional to 21,853.65, 30,157.75 and 12,292.82 is: 16,963.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,853.65 : 30,157.75 = 12,292.82 : x
  2. Step 2: Convert to fraction form
    21,853.65/30,157.75 = 12,292.82/x
  3. Step 3: Cross multiply
    21,853.65x = 30,157.75 × 12,292.82
  4. Step 4: Simplify right side
    21,853.65x = 370,723,792.36
  5. Step 5: Solve for x
    x = 370,723,792.36/21,853.65
  6. Step 6: Final answer
    x = 16,963.93

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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.