Home / 31,860.54-47,796.55-13,130.16

Finding the Fourth Proportional to 31,860.54, 47,796.55 and 13,130.16

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Solution

The fourth proportional to 31,860.54, 47,796.55 and 13,130.16 is: 19,697.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,860.54 : 47,796.55 = 13,130.16 : x
  2. Step 2: Convert to fraction form
    31,860.54/47,796.55 = 13,130.16/x
  3. Step 3: Cross multiply
    31,860.54x = 47,796.55 × 13,130.16
  4. Step 4: Simplify right side
    31,860.54x = 627,576,348.95
  5. Step 5: Solve for x
    x = 627,576,348.95/31,860.54
  6. Step 6: Final answer
    x = 19,697.61

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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.