Home / 21,386.64-32,036.76-17,911.38

Finding the Fourth Proportional to 21,386.64, 32,036.76 and 17,911.38

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Solution

The fourth proportional to 21,386.64, 32,036.76 and 17,911.38 is: 26,830.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386.64 : 32,036.76 = 17,911.38 : x
  2. Step 2: Convert to fraction form
    21,386.64/32,036.76 = 17,911.38/x
  3. Step 3: Cross multiply
    21,386.64x = 32,036.76 × 17,911.38
  4. Step 4: Simplify right side
    21,386.64x = 573,822,582.33
  5. Step 5: Solve for x
    x = 573,822,582.33/21,386.64
  6. Step 6: Final answer
    x = 26,830.89

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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.