Home / 27,806.76-38,371.73-15,707.25

Finding the Fourth Proportional to 27,806.76, 38,371.73 and 15,707.25

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Solution

The fourth proportional to 27,806.76, 38,371.73 and 15,707.25 is: 21,675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,806.76 : 38,371.73 = 15,707.25 : x
  2. Step 2: Convert to fraction form
    27,806.76/38,371.73 = 15,707.25/x
  3. Step 3: Cross multiply
    27,806.76x = 38,371.73 × 15,707.25
  4. Step 4: Simplify right side
    27,806.76x = 602,714,277.51
  5. Step 5: Solve for x
    x = 602,714,277.51/27,806.76
  6. Step 6: Final answer
    x = 21,675.10

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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.