Home / 27,992.13-38,629.31-15,417.69

Finding the Fourth Proportional to 27,992.13, 38,629.31 and 15,417.69

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Solution

The fourth proportional to 27,992.13, 38,629.31 and 15,417.69 is: 21,276.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,992.13 : 38,629.31 = 15,417.69 : x
  2. Step 2: Convert to fraction form
    27,992.13/38,629.31 = 15,417.69/x
  3. Step 3: Cross multiply
    27,992.13x = 38,629.31 × 15,417.69
  4. Step 4: Simplify right side
    27,992.13x = 595,574,726.49
  5. Step 5: Solve for x
    x = 595,574,726.49/27,992.13
  6. Step 6: Final answer
    x = 21,276.51

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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.