Home / 31,860.95-47,797.19-13,130.56

Finding the Fourth Proportional to 31,860.95, 47,797.19 and 13,130.56

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Solution

The fourth proportional to 31,860.95, 47,797.19 and 13,130.56 is: 19,698.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,860.95 : 47,797.19 = 13,130.56 : x
  2. Step 2: Convert to fraction form
    31,860.95/47,797.19 = 13,130.56/x
  3. Step 3: Cross multiply
    31,860.95x = 47,797.19 × 13,130.56
  4. Step 4: Simplify right side
    31,860.95x = 627,603,645.60
  5. Step 5: Solve for x
    x = 627,603,645.60/31,860.95
  6. Step 6: Final answer
    x = 19,698.21

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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.