Home / 30,389.08-41,942.28-19,647.16

Finding the Fourth Proportional to 30,389.08, 41,942.28 and 19,647.16

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Solution

The fourth proportional to 30,389.08, 41,942.28 and 19,647.16 is: 27,116.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,389.08 : 41,942.28 = 19,647.16 : x
  2. Step 2: Convert to fraction form
    30,389.08/41,942.28 = 19,647.16/x
  3. Step 3: Cross multiply
    30,389.08x = 41,942.28 × 19,647.16
  4. Step 4: Simplify right side
    30,389.08x = 824,046,685.92
  5. Step 5: Solve for x
    x = 824,046,685.92/30,389.08
  6. Step 6: Final answer
    x = 27,116.54

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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.