Home / 19,650.33-27,117.23-12,945.69

Finding the Fourth Proportional to 19,650.33, 27,117.23 and 12,945.69

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Solution

The fourth proportional to 19,650.33, 27,117.23 and 12,945.69 is: 17,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,650.33 : 27,117.23 = 12,945.69 : x
  2. Step 2: Convert to fraction form
    19,650.33/27,117.23 = 12,945.69/x
  3. Step 3: Cross multiply
    19,650.33x = 27,117.23 × 12,945.69
  4. Step 4: Simplify right side
    19,650.33x = 351,051,188.51
  5. Step 5: Solve for x
    x = 351,051,188.51/19,650.33
  6. Step 6: Final answer
    x = 17,864.90

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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.