Home / 28,785.00-43,159.06-19,875.38

Finding the Fourth Proportional to 28,785.00, 43,159.06 and 19,875.38

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Solution

The fourth proportional to 28,785.00, 43,159.06 and 19,875.38 is: 29,800.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785.00 : 43,159.06 = 19,875.38 : x
  2. Step 2: Convert to fraction form
    28,785.00/43,159.06 = 19,875.38/x
  3. Step 3: Cross multiply
    28,785.00x = 43,159.06 × 19,875.38
  4. Step 4: Simplify right side
    28,785.00x = 857,802,526.99
  5. Step 5: Solve for x
    x = 857,802,526.99/28,785.00
  6. Step 6: Final answer
    x = 29,800.33

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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.