Home / 23,014.13-31,756.79-12,942.05

Finding the Fourth Proportional to 23,014.13, 31,756.79 and 12,942.05

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Solution

The fourth proportional to 23,014.13, 31,756.79 and 12,942.05 is: 17,858.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,014.13 : 31,756.79 = 12,942.05 : x
  2. Step 2: Convert to fraction form
    23,014.13/31,756.79 = 12,942.05/x
  3. Step 3: Cross multiply
    23,014.13x = 31,756.79 × 12,942.05
  4. Step 4: Simplify right side
    23,014.13x = 410,997,837.59
  5. Step 5: Solve for x
    x = 410,997,837.59/23,014.13
  6. Step 6: Final answer
    x = 17,858.50

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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.