Home / 28,656.99-39,560.00-19,112.76

Finding the Fourth Proportional to 28,656.99, 39,560.00 and 19,112.76

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Solution

The fourth proportional to 28,656.99, 39,560.00 and 19,112.76 is: 26,384.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656.99 : 39,560.00 = 19,112.76 : x
  2. Step 2: Convert to fraction form
    28,656.99/39,560.00 = 19,112.76/x
  3. Step 3: Cross multiply
    28,656.99x = 39,560.00 × 19,112.76
  4. Step 4: Simplify right side
    28,656.99x = 756,100,690.04
  5. Step 5: Solve for x
    x = 756,100,690.04/28,656.99
  6. Step 6: Final answer
    x = 26,384.51

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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.