Home / 30,101.88-45,145.56-12,562.20

Finding the Fourth Proportional to 30,101.88, 45,145.56 and 12,562.20

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Solution

The fourth proportional to 30,101.88, 45,145.56 and 12,562.20 is: 18,840.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,101.88 : 45,145.56 = 12,562.20 : x
  2. Step 2: Convert to fraction form
    30,101.88/45,145.56 = 12,562.20/x
  3. Step 3: Cross multiply
    30,101.88x = 45,145.56 × 12,562.20
  4. Step 4: Simplify right side
    30,101.88x = 567,127,553.83
  5. Step 5: Solve for x
    x = 567,127,553.83/30,101.88
  6. Step 6: Final answer
    x = 18,840.27

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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.