Home / 39,830.55-59,745.74-11,770.31

Finding the Fourth Proportional to 39,830.55, 59,745.74 and 11,770.31

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Solution

The fourth proportional to 39,830.55, 59,745.74 and 11,770.31 is: 17,655.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,830.55 : 59,745.74 = 11,770.31 : x
  2. Step 2: Convert to fraction form
    39,830.55/59,745.74 = 11,770.31/x
  3. Step 3: Cross multiply
    39,830.55x = 59,745.74 × 11,770.31
  4. Step 4: Simplify right side
    39,830.55x = 703,225,880.98
  5. Step 5: Solve for x
    x = 703,225,880.98/39,830.55
  6. Step 6: Final answer
    x = 17,655.44

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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.