Home / 19,319.26-26,658.36-10,820.20

Finding the Fourth Proportional to 19,319.26, 26,658.36 and 10,820.20

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Solution

The fourth proportional to 19,319.26, 26,658.36 and 10,820.20 is: 14,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.26 : 26,658.36 = 10,820.20 : x
  2. Step 2: Convert to fraction form
    19,319.26/26,658.36 = 10,820.20/x
  3. Step 3: Cross multiply
    19,319.26x = 26,658.36 × 10,820.20
  4. Step 4: Simplify right side
    19,319.26x = 288,448,786.87
  5. Step 5: Solve for x
    x = 288,448,786.87/19,319.26
  6. Step 6: Final answer
    x = 14,930.63

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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.