Home / 27,976.96-38,608.08-15,401.70

Finding the Fourth Proportional to 27,976.96, 38,608.08 and 15,401.70

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Solution

The fourth proportional to 27,976.96, 38,608.08 and 15,401.70 is: 21,254.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,976.96 : 38,608.08 = 15,401.70 : x
  2. Step 2: Convert to fraction form
    27,976.96/38,608.08 = 15,401.70/x
  3. Step 3: Cross multiply
    27,976.96x = 38,608.08 × 15,401.70
  4. Step 4: Simplify right side
    27,976.96x = 594,630,065.74
  5. Step 5: Solve for x
    x = 594,630,065.74/27,976.96
  6. Step 6: Final answer
    x = 21,254.28

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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.