Home / 21,091.51-31,637.30-6,299.27

Finding the Fourth Proportional to 21,091.51, 31,637.30 and 6,299.27

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Solution

The fourth proportional to 21,091.51, 31,637.30 and 6,299.27 is: 9,448.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,091.51 : 31,637.30 = 6,299.27 : x
  2. Step 2: Convert to fraction form
    21,091.51/31,637.30 = 6,299.27/x
  3. Step 3: Cross multiply
    21,091.51x = 31,637.30 × 6,299.27
  4. Step 4: Simplify right side
    21,091.51x = 199,291,705.09
  5. Step 5: Solve for x
    x = 199,291,705.09/21,091.51
  6. Step 6: Final answer
    x = 9,448.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.