Home / 31,647.85-47,448.32-19,164.87

Finding the Fourth Proportional to 31,647.85, 47,448.32 and 19,164.87

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Solution

The fourth proportional to 31,647.85, 47,448.32 and 19,164.87 is: 28,733.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,647.85 : 47,448.32 = 19,164.87 : x
  2. Step 2: Convert to fraction form
    31,647.85/47,448.32 = 19,164.87/x
  3. Step 3: Cross multiply
    31,647.85x = 47,448.32 × 19,164.87
  4. Step 4: Simplify right side
    31,647.85x = 909,340,788.69
  5. Step 5: Solve for x
    x = 909,340,788.69/31,647.85
  6. Step 6: Final answer
    x = 28,733.10

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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.