Home / 27,179.06-40,784.04-21,239.19

Finding the Fourth Proportional to 27,179.06, 40,784.04 and 21,239.19

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Solution

The fourth proportional to 27,179.06, 40,784.04 and 21,239.19 is: 31,870.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,179.06 : 40,784.04 = 21,239.19 : x
  2. Step 2: Convert to fraction form
    27,179.06/40,784.04 = 21,239.19/x
  3. Step 3: Cross multiply
    27,179.06x = 40,784.04 × 21,239.19
  4. Step 4: Simplify right side
    27,179.06x = 866,219,974.53
  5. Step 5: Solve for x
    x = 866,219,974.53/27,179.06
  6. Step 6: Final answer
    x = 31,870.86

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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.