Home / 19,857.23-27,402.63-10,904.50

Finding the Fourth Proportional to 19,857.23, 27,402.63 and 10,904.50

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Solution

The fourth proportional to 19,857.23, 27,402.63 and 10,904.50 is: 15,048.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.23 : 27,402.63 = 10,904.50 : x
  2. Step 2: Convert to fraction form
    19,857.23/27,402.63 = 10,904.50/x
  3. Step 3: Cross multiply
    19,857.23x = 27,402.63 × 10,904.50
  4. Step 4: Simplify right side
    19,857.23x = 298,811,978.84
  5. Step 5: Solve for x
    x = 298,811,978.84/19,857.23
  6. Step 6: Final answer
    x = 15,048.02

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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.