Home / 21,044.64-29,041.74-11,485.20

Finding the Fourth Proportional to 21,044.64, 29,041.74 and 11,485.20

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Solution

The fourth proportional to 21,044.64, 29,041.74 and 11,485.20 is: 15,849.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.64 : 29,041.74 = 11,485.20 : x
  2. Step 2: Convert to fraction form
    21,044.64/29,041.74 = 11,485.20/x
  3. Step 3: Cross multiply
    21,044.64x = 29,041.74 × 11,485.20
  4. Step 4: Simplify right side
    21,044.64x = 333,550,192.25
  5. Step 5: Solve for x
    x = 333,550,192.25/21,044.64
  6. Step 6: Final answer
    x = 15,849.65

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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.