Home / 17,223.76-23,744.23-12,678.45

Finding the Fourth Proportional to 17,223.76, 23,744.23 and 12,678.45

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Solution

The fourth proportional to 17,223.76, 23,744.23 and 12,678.45 is: 17,478.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,223.76 : 23,744.23 = 12,678.45 : x
  2. Step 2: Convert to fraction form
    17,223.76/23,744.23 = 12,678.45/x
  3. Step 3: Cross multiply
    17,223.76x = 23,744.23 × 12,678.45
  4. Step 4: Simplify right side
    17,223.76x = 301,040,032.84
  5. Step 5: Solve for x
    x = 301,040,032.84/17,223.76
  6. Step 6: Final answer
    x = 17,478.18

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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.