Home / 21,996.26-30,360.12-12,570.32

Finding the Fourth Proportional to 21,996.26, 30,360.12 and 12,570.32

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Solution

The fourth proportional to 21,996.26, 30,360.12 and 12,570.32 is: 17,350.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,996.26 : 30,360.12 = 12,570.32 : x
  2. Step 2: Convert to fraction form
    21,996.26/30,360.12 = 12,570.32/x
  3. Step 3: Cross multiply
    21,996.26x = 30,360.12 × 12,570.32
  4. Step 4: Simplify right side
    21,996.26x = 381,636,423.64
  5. Step 5: Solve for x
    x = 381,636,423.64/21,996.26
  6. Step 6: Final answer
    x = 17,350.06

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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.