Home / 19,857.42-27,401.85-10,904.76

Finding the Fourth Proportional to 19,857.42, 27,401.85 and 10,904.76

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Solution

The fourth proportional to 19,857.42, 27,401.85 and 10,904.76 is: 15,047.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.42 : 27,401.85 = 10,904.76 : x
  2. Step 2: Convert to fraction form
    19,857.42/27,401.85 = 10,904.76/x
  3. Step 3: Cross multiply
    19,857.42x = 27,401.85 × 10,904.76
  4. Step 4: Simplify right side
    19,857.42x = 298,810,597.81
  5. Step 5: Solve for x
    x = 298,810,597.81/19,857.42
  6. Step 6: Final answer
    x = 15,047.81

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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.