Home / 21,400.08-29,533.56-11,969.52

Finding the Fourth Proportional to 21,400.08, 29,533.56 and 11,969.52

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Solution

The fourth proportional to 21,400.08, 29,533.56 and 11,969.52 is: 16,518.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,400.08 : 29,533.56 = 11,969.52 : x
  2. Step 2: Convert to fraction form
    21,400.08/29,533.56 = 11,969.52/x
  3. Step 3: Cross multiply
    21,400.08x = 29,533.56 × 11,969.52
  4. Step 4: Simplify right side
    21,400.08x = 353,502,537.09
  5. Step 5: Solve for x
    x = 353,502,537.09/21,400.08
  6. Step 6: Final answer
    x = 16,518.75

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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.