Home / 30,173.30-45,221.64-13,532.66

Finding the Fourth Proportional to 30,173.30, 45,221.64 and 13,532.66

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Solution

The fourth proportional to 30,173.30, 45,221.64 and 13,532.66 is: 20,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,173.30 : 45,221.64 = 13,532.66 : x
  2. Step 2: Convert to fraction form
    30,173.30/45,221.64 = 13,532.66/x
  3. Step 3: Cross multiply
    30,173.30x = 45,221.64 × 13,532.66
  4. Step 4: Simplify right side
    30,173.30x = 611,968,852.65
  5. Step 5: Solve for x
    x = 611,968,852.65/30,173.30
  6. Step 6: Final answer
    x = 20,281.80

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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.