Home / 30,011.88-45,005.37-11,282.25

Finding the Fourth Proportional to 30,011.88, 45,005.37 and 11,282.25

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Solution

The fourth proportional to 30,011.88, 45,005.37 and 11,282.25 is: 16,918.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,011.88 : 45,005.37 = 11,282.25 : x
  2. Step 2: Convert to fraction form
    30,011.88/45,005.37 = 11,282.25/x
  3. Step 3: Cross multiply
    30,011.88x = 45,005.37 × 11,282.25
  4. Step 4: Simplify right side
    30,011.88x = 507,761,835.68
  5. Step 5: Solve for x
    x = 507,761,835.68/30,011.88
  6. Step 6: Final answer
    x = 16,918.69

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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.