Home / 30,231.30-41,717.40-16,802.10

Finding the Fourth Proportional to 30,231.30, 41,717.40 and 16,802.10

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Solution

The fourth proportional to 30,231.30, 41,717.40 and 16,802.10 is: 23,185.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,231.30 : 41,717.40 = 16,802.10 : x
  2. Step 2: Convert to fraction form
    30,231.30/41,717.40 = 16,802.10/x
  3. Step 3: Cross multiply
    30,231.30x = 41,717.40 × 16,802.10
  4. Step 4: Simplify right side
    30,231.30x = 700,939,829.30
  5. Step 5: Solve for x
    x = 700,939,829.30/30,231.30
  6. Step 6: Final answer
    x = 23,185.90

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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.