Home / 22,371.16-30,873.06-12,812.56

Finding the Fourth Proportional to 22,371.16, 30,873.06 and 12,812.56

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Solution

The fourth proportional to 22,371.16, 30,873.06 and 12,812.56 is: 17,681.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,371.16 : 30,873.06 = 12,812.56 : x
  2. Step 2: Convert to fraction form
    22,371.16/30,873.06 = 12,812.56/x
  3. Step 3: Cross multiply
    22,371.16x = 30,873.06 × 12,812.56
  4. Step 4: Simplify right side
    22,371.16x = 395,562,933.63
  5. Step 5: Solve for x
    x = 395,562,933.63/22,371.16
  6. Step 6: Final answer
    x = 17,681.82

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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.