Home / 35,785.40-49,384.28-19,871.33

Finding the Fourth Proportional to 35,785.40, 49,384.28 and 19,871.33

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Solution

The fourth proportional to 35,785.40, 49,384.28 and 19,871.33 is: 27,422.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,785.40 : 49,384.28 = 19,871.33 : x
  2. Step 2: Convert to fraction form
    35,785.40/49,384.28 = 19,871.33/x
  3. Step 3: Cross multiply
    35,785.40x = 49,384.28 × 19,871.33
  4. Step 4: Simplify right side
    35,785.40x = 981,331,127.45
  5. Step 5: Solve for x
    x = 981,331,127.45/35,785.40
  6. Step 6: Final answer
    x = 27,422.67

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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.