Home / 31,522.80-47,287.98-12,798.84

Finding the Fourth Proportional to 31,522.80, 47,287.98 and 12,798.84

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Solution

The fourth proportional to 31,522.80, 47,287.98 and 12,798.84 is: 19,199.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,522.80 : 47,287.98 = 12,798.84 : x
  2. Step 2: Convert to fraction form
    31,522.80/47,287.98 = 12,798.84/x
  3. Step 3: Cross multiply
    31,522.80x = 47,287.98 × 12,798.84
  4. Step 4: Simplify right side
    31,522.80x = 605,231,289.94
  5. Step 5: Solve for x
    x = 605,231,289.94/31,522.80
  6. Step 6: Final answer
    x = 19,199.79

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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.