Home / 28,441.81-39,257.51-16,509.00

Finding the Fourth Proportional to 28,441.81, 39,257.51 and 16,509.00

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Solution

The fourth proportional to 28,441.81, 39,257.51 and 16,509.00 is: 22,786.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,441.81 : 39,257.51 = 16,509.00 : x
  2. Step 2: Convert to fraction form
    28,441.81/39,257.51 = 16,509.00/x
  3. Step 3: Cross multiply
    28,441.81x = 39,257.51 × 16,509.00
  4. Step 4: Simplify right side
    28,441.81x = 648,102,036.30
  5. Step 5: Solve for x
    x = 648,102,036.30/28,441.81
  6. Step 6: Final answer
    x = 22,786.95

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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.