Home / 22,919.78-34,222.86-20,532.45

Finding the Fourth Proportional to 22,919.78, 34,222.86 and 20,532.45

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Solution

The fourth proportional to 22,919.78, 34,222.86 and 20,532.45 is: 30,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,919.78 : 34,222.86 = 20,532.45 : x
  2. Step 2: Convert to fraction form
    22,919.78/34,222.86 = 20,532.45/x
  3. Step 3: Cross multiply
    22,919.78x = 34,222.86 × 20,532.45
  4. Step 4: Simplify right side
    22,919.78x = 702,679,161.81
  5. Step 5: Solve for x
    x = 702,679,161.81/22,919.78
  6. Step 6: Final answer
    x = 30,658.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.