Home / 19,929.26-27,303.21-19,181.90

Finding the Fourth Proportional to 19,929.26, 27,303.21 and 19,181.90

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Solution

The fourth proportional to 19,929.26, 27,303.21 and 19,181.90 is: 26,279.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.26 : 27,303.21 = 19,181.90 : x
  2. Step 2: Convert to fraction form
    19,929.26/27,303.21 = 19,181.90/x
  3. Step 3: Cross multiply
    19,929.26x = 27,303.21 × 19,181.90
  4. Step 4: Simplify right side
    19,929.26x = 523,727,347.99
  5. Step 5: Solve for x
    x = 523,727,347.99/19,929.26
  6. Step 6: Final answer
    x = 26,279.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.