Home / 31,897.36-47,814.81-11,892.21

Finding the Fourth Proportional to 31,897.36, 47,814.81 and 11,892.21

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Solution

The fourth proportional to 31,897.36, 47,814.81 and 11,892.21 is: 17,826.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,897.36 : 47,814.81 = 11,892.21 : x
  2. Step 2: Convert to fraction form
    31,897.36/47,814.81 = 11,892.21/x
  3. Step 3: Cross multiply
    31,897.36x = 47,814.81 × 11,892.21
  4. Step 4: Simplify right side
    31,897.36x = 568,623,761.63
  5. Step 5: Solve for x
    x = 568,623,761.63/31,897.36
  6. Step 6: Final answer
    x = 17,826.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.