Home / 19,933-27,508.79-10,980.51

Finding the Fourth Proportional to 19,933, 27,508.79 and 10,980.51

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Solution

The fourth proportional to 19,933, 27,508.79 and 10,980.51 is: 15,153.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,933 : 27,508.79 = 10,980.51 : x
  2. Step 2: Convert to fraction form
    19,933/27,508.79 = 10,980.51/x
  3. Step 3: Cross multiply
    19,933x = 27,508.79 × 10,980.51
  4. Step 4: Simplify right side
    19,933x = 302,060,543.68
  5. Step 5: Solve for x
    x = 302,060,543.68/19,933
  6. Step 6: Final answer
    x = 15,153.79

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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.