Home / 21,044.71-29,007.61-18,312.25

Finding the Fourth Proportional to 21,044.71, 29,007.61 and 18,312.25

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Solution

The fourth proportional to 21,044.71, 29,007.61 and 18,312.25 is: 25,241.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.71 : 29,007.61 = 18,312.25 : x
  2. Step 2: Convert to fraction form
    21,044.71/29,007.61 = 18,312.25/x
  3. Step 3: Cross multiply
    21,044.71x = 29,007.61 × 18,312.25
  4. Step 4: Simplify right side
    21,044.71x = 531,194,606.22
  5. Step 5: Solve for x
    x = 531,194,606.22/21,044.71
  6. Step 6: Final answer
    x = 25,241.24

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1.5x scale

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.