Home / 21,447.36-29,594.88-12,954.60

Finding the Fourth Proportional to 21,447.36, 29,594.88 and 12,954.60

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Solution

The fourth proportional to 21,447.36, 29,594.88 and 12,954.60 is: 17,875.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,447.36 : 29,594.88 = 12,954.60 : x
  2. Step 2: Convert to fraction form
    21,447.36/29,594.88 = 12,954.60/x
  3. Step 3: Cross multiply
    21,447.36x = 29,594.88 × 12,954.60
  4. Step 4: Simplify right side
    21,447.36x = 383,389,832.45
  5. Step 5: Solve for x
    x = 383,389,832.45/21,447.36
  6. Step 6: Final answer
    x = 17,875.85

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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.