Home / 21,323.10-29,418.16-12,365.68

Finding the Fourth Proportional to 21,323.10, 29,418.16 and 12,365.68

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Solution

The fourth proportional to 21,323.10, 29,418.16 and 12,365.68 is: 17,060.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,323.10 : 29,418.16 = 12,365.68 : x
  2. Step 2: Convert to fraction form
    21,323.10/29,418.16 = 12,365.68/x
  3. Step 3: Cross multiply
    21,323.10x = 29,418.16 × 12,365.68
  4. Step 4: Simplify right side
    21,323.10x = 363,775,552.75
  5. Step 5: Solve for x
    x = 363,775,552.75/21,323.10
  6. Step 6: Final answer
    x = 17,060.16

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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.