Home / 19,621.22-27,077.28-10,668.70

Finding the Fourth Proportional to 19,621.22, 27,077.28 and 10,668.70

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Solution

The fourth proportional to 19,621.22, 27,077.28 and 10,668.70 is: 14,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.22 : 27,077.28 = 10,668.70 : x
  2. Step 2: Convert to fraction form
    19,621.22/27,077.28 = 10,668.70/x
  3. Step 3: Cross multiply
    19,621.22x = 27,077.28 × 10,668.70
  4. Step 4: Simplify right side
    19,621.22x = 288,879,377.14
  5. Step 5: Solve for x
    x = 288,879,377.14/19,621.22
  6. Step 6: Final answer
    x = 14,722.80

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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.