Home / 30,212.70-41,699.49-19,303.86

Finding the Fourth Proportional to 30,212.70, 41,699.49 and 19,303.86

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Solution

The fourth proportional to 30,212.70, 41,699.49 and 19,303.86 is: 26,643.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,212.70 : 41,699.49 = 19,303.86 : x
  2. Step 2: Convert to fraction form
    30,212.70/41,699.49 = 19,303.86/x
  3. Step 3: Cross multiply
    30,212.70x = 41,699.49 × 19,303.86
  4. Step 4: Simplify right side
    30,212.70x = 804,961,117.03
  5. Step 5: Solve for x
    x = 804,961,117.03/30,212.70
  6. Step 6: Final answer
    x = 26,643.14

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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.