Home / 22,339.19-30,828.62-12,130.64

Finding the Fourth Proportional to 22,339.19, 30,828.62 and 12,130.64

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Solution

The fourth proportional to 22,339.19, 30,828.62 and 12,130.64 is: 16,740.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,339.19 : 30,828.62 = 12,130.64 : x
  2. Step 2: Convert to fraction form
    22,339.19/30,828.62 = 12,130.64/x
  3. Step 3: Cross multiply
    22,339.19x = 30,828.62 × 12,130.64
  4. Step 4: Simplify right side
    22,339.19x = 373,970,987.88
  5. Step 5: Solve for x
    x = 373,970,987.88/22,339.19
  6. Step 6: Final answer
    x = 16,740.58

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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.