Home / 22,256.64-30,714.48-12,320.64

Finding the Fourth Proportional to 22,256.64, 30,714.48 and 12,320.64

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Solution

The fourth proportional to 22,256.64, 30,714.48 and 12,320.64 is: 17,002.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,256.64 : 30,714.48 = 12,320.64 : x
  2. Step 2: Convert to fraction form
    22,256.64/30,714.48 = 12,320.64/x
  3. Step 3: Cross multiply
    22,256.64x = 30,714.48 × 12,320.64
  4. Step 4: Simplify right side
    22,256.64x = 378,422,050.87
  5. Step 5: Solve for x
    x = 378,422,050.87/22,256.64
  6. Step 6: Final answer
    x = 17,002.66

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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.