Home / 21,284.36-29,372.73-12,332.51

Finding the Fourth Proportional to 21,284.36, 29,372.73 and 12,332.51

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Solution

The fourth proportional to 21,284.36, 29,372.73 and 12,332.51 is: 17,019.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284.36 : 29,372.73 = 12,332.51 : x
  2. Step 2: Convert to fraction form
    21,284.36/29,372.73 = 12,332.51/x
  3. Step 3: Cross multiply
    21,284.36x = 29,372.73 × 12,332.51
  4. Step 4: Simplify right side
    21,284.36x = 362,239,486.45
  5. Step 5: Solve for x
    x = 362,239,486.45/21,284.36
  6. Step 6: Final answer
    x = 17,019.05

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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.