Home / 30,215.96-41,703.94-19,307.08

Finding the Fourth Proportional to 30,215.96, 41,703.94 and 19,307.08

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Solution

The fourth proportional to 30,215.96, 41,703.94 and 19,307.08 is: 26,647.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,215.96 : 41,703.94 = 19,307.08 : x
  2. Step 2: Convert to fraction form
    30,215.96/41,703.94 = 19,307.08/x
  3. Step 3: Cross multiply
    30,215.96x = 41,703.94 × 19,307.08
  4. Step 4: Simplify right side
    30,215.96x = 805,181,305.90
  5. Step 5: Solve for x
    x = 805,181,305.90/30,215.96
  6. Step 6: Final answer
    x = 26,647.55

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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.