Home / 28,864.99-39,836.96-16,288.75

Finding the Fourth Proportional to 28,864.99, 39,836.96 and 16,288.75

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Solution

The fourth proportional to 28,864.99, 39,836.96 and 16,288.75 is: 22,480.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,864.99 : 39,836.96 = 16,288.75 : x
  2. Step 2: Convert to fraction form
    28,864.99/39,836.96 = 16,288.75/x
  3. Step 3: Cross multiply
    28,864.99x = 39,836.96 × 16,288.75
  4. Step 4: Simplify right side
    28,864.99x = 648,894,282.20
  5. Step 5: Solve for x
    x = 648,894,282.20/28,864.99
  6. Step 6: Final answer
    x = 22,480.32

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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.