Home / 39,419.55-54,396.83-22,421.50

Finding the Fourth Proportional to 39,419.55, 54,396.83 and 22,421.50

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Solution

The fourth proportional to 39,419.55, 54,396.83 and 22,421.50 is: 30,940.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,419.55 : 54,396.83 = 22,421.50 : x
  2. Step 2: Convert to fraction form
    39,419.55/54,396.83 = 22,421.50/x
  3. Step 3: Cross multiply
    39,419.55x = 54,396.83 × 22,421.50
  4. Step 4: Simplify right side
    39,419.55x = 1,219,658,443.91
  5. Step 5: Solve for x
    x = 1,219,658,443.91/39,419.55
  6. Step 6: Final answer
    x = 30,940.45

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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.