Home / 20,089.83-30,136.75-7,442.98

Finding the Fourth Proportional to 20,089.83, 30,136.75 and 7,442.98

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Solution

The fourth proportional to 20,089.83, 30,136.75 and 7,442.98 is: 11,165.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.83 : 30,136.75 = 7,442.98 : x
  2. Step 2: Convert to fraction form
    20,089.83/30,136.75 = 7,442.98/x
  3. Step 3: Cross multiply
    20,089.83x = 30,136.75 × 7,442.98
  4. Step 4: Simplify right side
    20,089.83x = 224,307,133.57
  5. Step 5: Solve for x
    x = 224,307,133.57/20,089.83
  6. Step 6: Final answer
    x = 11,165.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.