Home / 42,929.75-64,383.76-19,224.03

Finding the Fourth Proportional to 42,929.75, 64,383.76 and 19,224.03

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Solution

The fourth proportional to 42,929.75, 64,383.76 and 19,224.03 is: 28,831.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,929.75 : 64,383.76 = 19,224.03 : x
  2. Step 2: Convert to fraction form
    42,929.75/64,383.76 = 19,224.03/x
  3. Step 3: Cross multiply
    42,929.75x = 64,383.76 × 19,224.03
  4. Step 4: Simplify right side
    42,929.75x = 1,237,715,599.22
  5. Step 5: Solve for x
    x = 1,237,715,599.22/42,929.75
  6. Step 6: Final answer
    x = 28,831.19

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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.