Home / 23,000.07-31,739.21-12,928.94

Finding the Fourth Proportional to 23,000.07, 31,739.21 and 12,928.94

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Solution

The fourth proportional to 23,000.07, 31,739.21 and 12,928.94 is: 17,841.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,000.07 : 31,739.21 = 12,928.94 : x
  2. Step 2: Convert to fraction form
    23,000.07/31,739.21 = 12,928.94/x
  3. Step 3: Cross multiply
    23,000.07x = 31,739.21 × 12,928.94
  4. Step 4: Simplify right side
    23,000.07x = 410,354,118.40
  5. Step 5: Solve for x
    x = 410,354,118.40/23,000.07
  6. Step 6: Final answer
    x = 17,841.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.