Home / 22,345.23-30,834.48-12,783.18

Finding the Fourth Proportional to 22,345.23, 30,834.48 and 12,783.18

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Solution

The fourth proportional to 22,345.23, 30,834.48 and 12,783.18 is: 17,639.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,345.23 : 30,834.48 = 12,783.18 : x
  2. Step 2: Convert to fraction form
    22,345.23/30,834.48 = 12,783.18/x
  3. Step 3: Cross multiply
    22,345.23x = 30,834.48 × 12,783.18
  4. Step 4: Simplify right side
    22,345.23x = 394,162,708.05
  5. Step 5: Solve for x
    x = 394,162,708.05/22,345.23
  6. Step 6: Final answer
    x = 17,639.68

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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.