Home / 21,703.87-29,951.40-12,272.50

Finding the Fourth Proportional to 21,703.87, 29,951.40 and 12,272.50

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Solution

The fourth proportional to 21,703.87, 29,951.40 and 12,272.50 is: 16,936.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,703.87 : 29,951.40 = 12,272.50 : x
  2. Step 2: Convert to fraction form
    21,703.87/29,951.40 = 12,272.50/x
  3. Step 3: Cross multiply
    21,703.87x = 29,951.40 × 12,272.50
  4. Step 4: Simplify right side
    21,703.87x = 367,578,556.50
  5. Step 5: Solve for x
    x = 367,578,556.50/21,703.87
  6. Step 6: Final answer
    x = 16,936.08

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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.