Home / 21,941.51-30,283.22-12,384.32

Finding the Fourth Proportional to 21,941.51, 30,283.22 and 12,384.32

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Solution

The fourth proportional to 21,941.51, 30,283.22 and 12,384.32 is: 17,092.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,941.51 : 30,283.22 = 12,384.32 : x
  2. Step 2: Convert to fraction form
    21,941.51/30,283.22 = 12,384.32/x
  3. Step 3: Cross multiply
    21,941.51x = 30,283.22 × 12,384.32
  4. Step 4: Simplify right side
    21,941.51x = 375,037,087.11
  5. Step 5: Solve for x
    x = 375,037,087.11/21,941.51
  6. Step 6: Final answer
    x = 17,092.58

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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.