Home / 28,900.94-39,871.24-19,453.10

Finding the Fourth Proportional to 28,900.94, 39,871.24 and 19,453.10

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Solution

The fourth proportional to 28,900.94, 39,871.24 and 19,453.10 is: 26,837.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.94 : 39,871.24 = 19,453.10 : x
  2. Step 2: Convert to fraction form
    28,900.94/39,871.24 = 19,453.10/x
  3. Step 3: Cross multiply
    28,900.94x = 39,871.24 × 19,453.10
  4. Step 4: Simplify right side
    28,900.94x = 775,618,970.86
  5. Step 5: Solve for x
    x = 775,618,970.86/28,900.94
  6. Step 6: Final answer
    x = 26,837.16

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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.