Home / 21,656.87-29,884.53-12,095.43

Finding the Fourth Proportional to 21,656.87, 29,884.53 and 12,095.43

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Solution

The fourth proportional to 21,656.87, 29,884.53 and 12,095.43 is: 16,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,656.87 : 29,884.53 = 12,095.43 : x
  2. Step 2: Convert to fraction form
    21,656.87/29,884.53 = 12,095.43/x
  3. Step 3: Cross multiply
    21,656.87x = 29,884.53 × 12,095.43
  4. Step 4: Simplify right side
    21,656.87x = 361,466,240.70
  5. Step 5: Solve for x
    x = 361,466,240.70/21,656.87
  6. Step 6: Final answer
    x = 16,690.60

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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.