Home / 21,463.16-29,620.54-11,904.14

Finding the Fourth Proportional to 21,463.16, 29,620.54 and 11,904.14

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Solution

The fourth proportional to 21,463.16, 29,620.54 and 11,904.14 is: 16,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,463.16 : 29,620.54 = 11,904.14 : x
  2. Step 2: Convert to fraction form
    21,463.16/29,620.54 = 11,904.14/x
  3. Step 3: Cross multiply
    21,463.16x = 29,620.54 × 11,904.14
  4. Step 4: Simplify right side
    21,463.16x = 352,607,055.04
  5. Step 5: Solve for x
    x = 352,607,055.04/21,463.16
  6. Step 6: Final answer
    x = 16,428.48

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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.