Home / 21,980.07-30,332.52-13,032

Finding the Fourth Proportional to 21,980.07, 30,332.52 and 13,032

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Solution

The fourth proportional to 21,980.07, 30,332.52 and 13,032 is: 17,984.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,980.07 : 30,332.52 = 13,032 : x
  2. Step 2: Convert to fraction form
    21,980.07/30,332.52 = 13,032/x
  3. Step 3: Cross multiply
    21,980.07x = 30,332.52 × 13,032
  4. Step 4: Simplify right side
    21,980.07x = 395,293,400.64
  5. Step 5: Solve for x
    x = 395,293,400.64/21,980.07
  6. Step 6: Final answer
    x = 17,984.17

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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.