Home / 22,439.16-30,970.35-12,884.67

Finding the Fourth Proportional to 22,439.16, 30,970.35 and 12,884.67

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Solution

The fourth proportional to 22,439.16, 30,970.35 and 12,884.67 is: 17,783.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,439.16 : 30,970.35 = 12,884.67 : x
  2. Step 2: Convert to fraction form
    22,439.16/30,970.35 = 12,884.67/x
  3. Step 3: Cross multiply
    22,439.16x = 30,970.35 × 12,884.67
  4. Step 4: Simplify right side
    22,439.16x = 399,042,739.53
  5. Step 5: Solve for x
    x = 399,042,739.53/22,439.16
  6. Step 6: Final answer
    x = 17,783.32

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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.