Home / 21,281.48-29,365.62-12,329.16

Finding the Fourth Proportional to 21,281.48, 29,365.62 and 12,329.16

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Solution

The fourth proportional to 21,281.48, 29,365.62 and 12,329.16 is: 17,012.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,281.48 : 29,365.62 = 12,329.16 : x
  2. Step 2: Convert to fraction form
    21,281.48/29,365.62 = 12,329.16/x
  3. Step 3: Cross multiply
    21,281.48x = 29,365.62 × 12,329.16
  4. Step 4: Simplify right side
    21,281.48x = 362,053,427.48
  5. Step 5: Solve for x
    x = 362,053,427.48/21,281.48
  6. Step 6: Final answer
    x = 17,012.61

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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.