Home / 38,940.21-53,737.74-22,817.05

Finding the Fourth Proportional to 38,940.21, 53,737.74 and 22,817.05

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Solution

The fourth proportional to 38,940.21, 53,737.74 and 22,817.05 is: 31,487.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,940.21 : 53,737.74 = 22,817.05 : x
  2. Step 2: Convert to fraction form
    38,940.21/53,737.74 = 22,817.05/x
  3. Step 3: Cross multiply
    38,940.21x = 53,737.74 × 22,817.05
  4. Step 4: Simplify right side
    38,940.21x = 1,226,136,317.69
  5. Step 5: Solve for x
    x = 1,226,136,317.69/38,940.21
  6. Step 6: Final answer
    x = 31,487.67

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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.