Home / 19,127.30-28,690.80-11,330.50

Finding the Fourth Proportional to 19,127.30, 28,690.80 and 11,330.50

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Solution

The fourth proportional to 19,127.30, 28,690.80 and 11,330.50 is: 16,995.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,127.30 : 28,690.80 = 11,330.50 : x
  2. Step 2: Convert to fraction form
    19,127.30/28,690.80 = 11,330.50/x
  3. Step 3: Cross multiply
    19,127.30x = 28,690.80 × 11,330.50
  4. Step 4: Simplify right side
    19,127.30x = 325,081,109.40
  5. Step 5: Solve for x
    x = 325,081,109.40/19,127.30
  6. Step 6: Final answer
    x = 16,995.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.