Home / 21,634.71-32,386.32-19,316.49

Finding the Fourth Proportional to 21,634.71, 32,386.32 and 19,316.49

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Solution

The fourth proportional to 21,634.71, 32,386.32 and 19,316.49 is: 28,916.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,634.71 : 32,386.32 = 19,316.49 : x
  2. Step 2: Convert to fraction form
    21,634.71/32,386.32 = 19,316.49/x
  3. Step 3: Cross multiply
    21,634.71x = 32,386.32 × 19,316.49
  4. Step 4: Simplify right side
    21,634.71x = 625,590,026.42
  5. Step 5: Solve for x
    x = 625,590,026.42/21,634.71
  6. Step 6: Final answer
    x = 28,916.03

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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.