Home / 30,232.40-45,370.20-12,714.80

Finding the Fourth Proportional to 30,232.40, 45,370.20 and 12,714.80

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Solution

The fourth proportional to 30,232.40, 45,370.20 and 12,714.80 is: 19,081.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,232.40 : 45,370.20 = 12,714.80 : x
  2. Step 2: Convert to fraction form
    30,232.40/45,370.20 = 12,714.80/x
  3. Step 3: Cross multiply
    30,232.40x = 45,370.20 × 12,714.80
  4. Step 4: Simplify right side
    30,232.40x = 576,873,018.96
  5. Step 5: Solve for x
    x = 576,873,018.96/30,232.40
  6. Step 6: Final answer
    x = 19,081.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.