Home / 22,361.02-30,856.40-12,930.19

Finding the Fourth Proportional to 22,361.02, 30,856.40 and 12,930.19

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Solution

The fourth proportional to 22,361.02, 30,856.40 and 12,930.19 is: 17,842.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,361.02 : 30,856.40 = 12,930.19 : x
  2. Step 2: Convert to fraction form
    22,361.02/30,856.40 = 12,930.19/x
  3. Step 3: Cross multiply
    22,361.02x = 30,856.40 × 12,930.19
  4. Step 4: Simplify right side
    22,361.02x = 398,979,114.72
  5. Step 5: Solve for x
    x = 398,979,114.72/22,361.02
  6. Step 6: Final answer
    x = 17,842.62

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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.