Home / 21,966.42-30,312.99-12,534.51

Finding the Fourth Proportional to 21,966.42, 30,312.99 and 12,534.51

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Solution

The fourth proportional to 21,966.42, 30,312.99 and 12,534.51 is: 17,297.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,966.42 : 30,312.99 = 12,534.51 : x
  2. Step 2: Convert to fraction form
    21,966.42/30,312.99 = 12,534.51/x
  3. Step 3: Cross multiply
    21,966.42x = 30,312.99 × 12,534.51
  4. Step 4: Simplify right side
    21,966.42x = 379,958,476.28
  5. Step 5: Solve for x
    x = 379,958,476.28/21,966.42
  6. Step 6: Final answer
    x = 17,297.24

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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.