Home / 27,992.04-38,629.38-15,417.72

Finding the Fourth Proportional to 27,992.04, 38,629.38 and 15,417.72

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Solution

The fourth proportional to 27,992.04, 38,629.38 and 15,417.72 is: 21,276.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,992.04 : 38,629.38 = 15,417.72 : x
  2. Step 2: Convert to fraction form
    27,992.04/38,629.38 = 15,417.72/x
  3. Step 3: Cross multiply
    27,992.04x = 38,629.38 × 15,417.72
  4. Step 4: Simplify right side
    27,992.04x = 595,576,964.61
  5. Step 5: Solve for x
    x = 595,576,964.61/27,992.04
  6. Step 6: Final answer
    x = 21,276.65

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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.