Home / 30,230.81-41,719.92-16,802.28

Finding the Fourth Proportional to 30,230.81, 41,719.92 and 16,802.28

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Solution

The fourth proportional to 30,230.81, 41,719.92 and 16,802.28 is: 23,187.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,230.81 : 41,719.92 = 16,802.28 : x
  2. Step 2: Convert to fraction form
    30,230.81/41,719.92 = 16,802.28/x
  3. Step 3: Cross multiply
    30,230.81x = 41,719.92 × 16,802.28
  4. Step 4: Simplify right side
    30,230.81x = 700,989,777.42
  5. Step 5: Solve for x
    x = 700,989,777.42/30,230.81
  6. Step 6: Final answer
    x = 23,187.93

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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.