Home / 21,116.39-29,152.19-14,412.02

Finding the Fourth Proportional to 21,116.39, 29,152.19 and 14,412.02

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Solution

The fourth proportional to 21,116.39, 29,152.19 and 14,412.02 is: 19,896.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,116.39 : 29,152.19 = 14,412.02 : x
  2. Step 2: Convert to fraction form
    21,116.39/29,152.19 = 14,412.02/x
  3. Step 3: Cross multiply
    21,116.39x = 29,152.19 × 14,412.02
  4. Step 4: Simplify right side
    21,116.39x = 420,141,873.26
  5. Step 5: Solve for x
    x = 420,141,873.26/21,116.39
  6. Step 6: Final answer
    x = 19,896.48

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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.