Home / 30,277.08-41,758.70-19,670.13

Finding the Fourth Proportional to 30,277.08, 41,758.70 and 19,670.13

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Solution

The fourth proportional to 30,277.08, 41,758.70 and 19,670.13 is: 27,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,277.08 : 41,758.70 = 19,670.13 : x
  2. Step 2: Convert to fraction form
    30,277.08/41,758.70 = 19,670.13/x
  3. Step 3: Cross multiply
    30,277.08x = 41,758.70 × 19,670.13
  4. Step 4: Simplify right side
    30,277.08x = 821,399,057.63
  5. Step 5: Solve for x
    x = 821,399,057.63/30,277.08
  6. Step 6: Final answer
    x = 27,129.40

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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.