Home / 28,383.52-42,597.96-12,802.36

Finding the Fourth Proportional to 28,383.52, 42,597.96 and 12,802.36

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Solution

The fourth proportional to 28,383.52, 42,597.96 and 12,802.36 is: 19,213.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383.52 : 42,597.96 = 12,802.36 : x
  2. Step 2: Convert to fraction form
    28,383.52/42,597.96 = 12,802.36/x
  3. Step 3: Cross multiply
    28,383.52x = 42,597.96 × 12,802.36
  4. Step 4: Simplify right side
    28,383.52x = 545,354,419.19
  5. Step 5: Solve for x
    x = 545,354,419.19/28,383.52
  6. Step 6: Final answer
    x = 19,213.77

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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.