Home / 21,362.03-29,480.45-12,287.38

Finding the Fourth Proportional to 21,362.03, 29,480.45 and 12,287.38

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Solution

The fourth proportional to 21,362.03, 29,480.45 and 12,287.38 is: 16,957.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,362.03 : 29,480.45 = 12,287.38 : x
  2. Step 2: Convert to fraction form
    21,362.03/29,480.45 = 12,287.38/x
  3. Step 3: Cross multiply
    21,362.03x = 29,480.45 × 12,287.38
  4. Step 4: Simplify right side
    21,362.03x = 362,237,491.72
  5. Step 5: Solve for x
    x = 362,237,491.72/21,362.03
  6. Step 6: Final answer
    x = 16,957.07

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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.