Home / 30,440.10-41,980.14-19,110.65

Finding the Fourth Proportional to 30,440.10, 41,980.14 and 19,110.65

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Solution

The fourth proportional to 30,440.10, 41,980.14 and 19,110.65 is: 26,355.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,440.10 : 41,980.14 = 19,110.65 : x
  2. Step 2: Convert to fraction form
    30,440.10/41,980.14 = 19,110.65/x
  3. Step 3: Cross multiply
    30,440.10x = 41,980.14 × 19,110.65
  4. Step 4: Simplify right side
    30,440.10x = 802,267,903.27
  5. Step 5: Solve for x
    x = 802,267,903.27/30,440.10
  6. Step 6: Final answer
    x = 26,355.62

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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.