Home / 19,900.05-27,462.30-11,402.00

Finding the Fourth Proportional to 19,900.05, 27,462.30 and 11,402.00

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Solution

The fourth proportional to 19,900.05, 27,462.30 and 11,402.00 is: 15,734.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,900.05 : 27,462.30 = 11,402.00 : x
  2. Step 2: Convert to fraction form
    19,900.05/27,462.30 = 11,402.00/x
  3. Step 3: Cross multiply
    19,900.05x = 27,462.30 × 11,402.00
  4. Step 4: Simplify right side
    19,900.05x = 313,125,119.01
  5. Step 5: Solve for x
    x = 313,125,119.01/19,900.05
  6. Step 6: Final answer
    x = 15,734.89

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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.