Home / 27,664.50-38,178.36-15,568.76

Finding the Fourth Proportional to 27,664.50, 38,178.36 and 15,568.76

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Solution

The fourth proportional to 27,664.50, 38,178.36 and 15,568.76 is: 21,485.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,664.50 : 38,178.36 = 15,568.76 : x
  2. Step 2: Convert to fraction form
    27,664.50/38,178.36 = 15,568.76/x
  3. Step 3: Cross multiply
    27,664.50x = 38,178.36 × 15,568.76
  4. Step 4: Simplify right side
    27,664.50x = 594,389,724.03
  5. Step 5: Solve for x
    x = 594,389,724.03/27,664.50
  6. Step 6: Final answer
    x = 21,485.65

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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.