Home / 21,282.08-29,368.32-11,850.08

Finding the Fourth Proportional to 21,282.08, 29,368.32 and 11,850.08

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Solution

The fourth proportional to 21,282.08, 29,368.32 and 11,850.08 is: 16,352.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.08 : 29,368.32 = 11,850.08 : x
  2. Step 2: Convert to fraction form
    21,282.08/29,368.32 = 11,850.08/x
  3. Step 3: Cross multiply
    21,282.08x = 29,368.32 × 11,850.08
  4. Step 4: Simplify right side
    21,282.08x = 348,016,941.47
  5. Step 5: Solve for x
    x = 348,016,941.47/21,282.08
  6. Step 6: Final answer
    x = 16,352.58

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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.