Home / 28,384.77-39,170.99-16,455.05

Finding the Fourth Proportional to 28,384.77, 39,170.99 and 16,455.05

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Solution

The fourth proportional to 28,384.77, 39,170.99 and 16,455.05 is: 22,707.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,384.77 : 39,170.99 = 16,455.05 : x
  2. Step 2: Convert to fraction form
    28,384.77/39,170.99 = 16,455.05/x
  3. Step 3: Cross multiply
    28,384.77x = 39,170.99 × 16,455.05
  4. Step 4: Simplify right side
    28,384.77x = 644,560,599.00
  5. Step 5: Solve for x
    x = 644,560,599.00/28,384.77
  6. Step 6: Final answer
    x = 22,707.97

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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.