Home / 27,992.96-38,630.29-15,417.71

Finding the Fourth Proportional to 27,992.96, 38,630.29 and 15,417.71

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Solution

The fourth proportional to 27,992.96, 38,630.29 and 15,417.71 is: 21,276.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,992.96 : 38,630.29 = 15,417.71 : x
  2. Step 2: Convert to fraction form
    27,992.96/38,630.29 = 15,417.71/x
  3. Step 3: Cross multiply
    27,992.96x = 38,630.29 × 15,417.71
  4. Step 4: Simplify right side
    27,992.96x = 595,590,531.35
  5. Step 5: Solve for x
    x = 595,590,531.35/27,992.96
  6. Step 6: Final answer
    x = 21,276.44

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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.