Home / 23,000.40-31,741.46-12,928.81

Finding the Fourth Proportional to 23,000.40, 31,741.46 and 12,928.81

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Solution

The fourth proportional to 23,000.40, 31,741.46 and 12,928.81 is: 17,842.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,000.40 : 31,741.46 = 12,928.81 : x
  2. Step 2: Convert to fraction form
    23,000.40/31,741.46 = 12,928.81/x
  3. Step 3: Cross multiply
    23,000.40x = 31,741.46 × 12,928.81
  4. Step 4: Simplify right side
    23,000.40x = 410,379,305.46
  5. Step 5: Solve for x
    x = 410,379,305.46/23,000.40
  6. Step 6: Final answer
    x = 17,842.27

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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.