Home / 21,629.39-29,846.93-14,090.13

Finding the Fourth Proportional to 21,629.39, 29,846.93 and 14,090.13

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Solution

The fourth proportional to 21,629.39, 29,846.93 and 14,090.13 is: 19,443.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.39 : 29,846.93 = 14,090.13 : x
  2. Step 2: Convert to fraction form
    21,629.39/29,846.93 = 14,090.13/x
  3. Step 3: Cross multiply
    21,629.39x = 29,846.93 × 14,090.13
  4. Step 4: Simplify right side
    21,629.39x = 420,547,053.35
  5. Step 5: Solve for x
    x = 420,547,053.35/21,629.39
  6. Step 6: Final answer
    x = 19,443.32

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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.