Home / 19,614.21-27,071.92-12,900.45

Finding the Fourth Proportional to 19,614.21, 27,071.92 and 12,900.45

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Solution

The fourth proportional to 19,614.21, 27,071.92 and 12,900.45 is: 17,805.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,614.21 : 27,071.92 = 12,900.45 : x
  2. Step 2: Convert to fraction form
    19,614.21/27,071.92 = 12,900.45/x
  3. Step 3: Cross multiply
    19,614.21x = 27,071.92 × 12,900.45
  4. Step 4: Simplify right side
    19,614.21x = 349,239,950.36
  5. Step 5: Solve for x
    x = 349,239,950.36/19,614.21
  6. Step 6: Final answer
    x = 17,805.46

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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.