Home / 21,419.61-29,556.93-12,468.30

Finding the Fourth Proportional to 21,419.61, 29,556.93 and 12,468.30

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Solution

The fourth proportional to 21,419.61, 29,556.93 and 12,468.30 is: 17,205.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,419.61 : 29,556.93 = 12,468.30 : x
  2. Step 2: Convert to fraction form
    21,419.61/29,556.93 = 12,468.30/x
  3. Step 3: Cross multiply
    21,419.61x = 29,556.93 × 12,468.30
  4. Step 4: Simplify right side
    21,419.61x = 368,524,670.32
  5. Step 5: Solve for x
    x = 368,524,670.32/21,419.61
  6. Step 6: Final answer
    x = 17,205.01

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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.