Home / 22,343.18-30,834.34-12,784.64

Finding the Fourth Proportional to 22,343.18, 30,834.34 and 12,784.64

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Solution

The fourth proportional to 22,343.18, 30,834.34 and 12,784.64 is: 17,643.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,343.18 : 30,834.34 = 12,784.64 : x
  2. Step 2: Convert to fraction form
    22,343.18/30,834.34 = 12,784.64/x
  3. Step 3: Cross multiply
    22,343.18x = 30,834.34 × 12,784.64
  4. Step 4: Simplify right side
    22,343.18x = 394,205,750.40
  5. Step 5: Solve for x
    x = 394,205,750.40/22,343.18
  6. Step 6: Final answer
    x = 17,643.23

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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.