Home / 21,494.40-29,653.44-13,532.16

Finding the Fourth Proportional to 21,494.40, 29,653.44 and 13,532.16

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Solution

The fourth proportional to 21,494.40, 29,653.44 and 13,532.16 is: 18,668.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,494.40 : 29,653.44 = 13,532.16 : x
  2. Step 2: Convert to fraction form
    21,494.40/29,653.44 = 13,532.16/x
  3. Step 3: Cross multiply
    21,494.40x = 29,653.44 × 13,532.16
  4. Step 4: Simplify right side
    21,494.40x = 401,275,094.63
  5. Step 5: Solve for x
    x = 401,275,094.63/21,494.40
  6. Step 6: Final answer
    x = 18,668.82

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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.