Home / 27,976.57-38,607.47-15,401.05

Finding the Fourth Proportional to 27,976.57, 38,607.47 and 15,401.05

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Solution

The fourth proportional to 27,976.57, 38,607.47 and 15,401.05 is: 21,253.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,976.57 : 38,607.47 = 15,401.05 : x
  2. Step 2: Convert to fraction form
    27,976.57/38,607.47 = 15,401.05/x
  3. Step 3: Cross multiply
    27,976.57x = 38,607.47 × 15,401.05
  4. Step 4: Simplify right side
    27,976.57x = 594,595,498.84
  5. Step 5: Solve for x
    x = 594,595,498.84/27,976.57
  6. Step 6: Final answer
    x = 21,253.34

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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.