Home / 30,215.79-41,699.57-16,788.51

Finding the Fourth Proportional to 30,215.79, 41,699.57 and 16,788.51

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Solution

The fourth proportional to 30,215.79, 41,699.57 and 16,788.51 is: 23,169.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,215.79 : 41,699.57 = 16,788.51 : x
  2. Step 2: Convert to fraction form
    30,215.79/41,699.57 = 16,788.51/x
  3. Step 3: Cross multiply
    30,215.79x = 41,699.57 × 16,788.51
  4. Step 4: Simplify right side
    30,215.79x = 700,073,564.00
  5. Step 5: Solve for x
    x = 700,073,564.00/30,215.79
  6. Step 6: Final answer
    x = 23,169.13

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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.