Home / 21,606.77-32,359.79-20,858.47

Finding the Fourth Proportional to 21,606.77, 32,359.79 and 20,858.47

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Solution

The fourth proportional to 21,606.77, 32,359.79 and 20,858.47 is: 31,239.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,606.77 : 32,359.79 = 20,858.47 : x
  2. Step 2: Convert to fraction form
    21,606.77/32,359.79 = 20,858.47/x
  3. Step 3: Cross multiply
    21,606.77x = 32,359.79 × 20,858.47
  4. Step 4: Simplify right side
    21,606.77x = 674,975,680.17
  5. Step 5: Solve for x
    x = 674,975,680.17/21,606.77
  6. Step 6: Final answer
    x = 31,239.08

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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.