Home / 28,960-39,964.53-16,384.75

Finding the Fourth Proportional to 28,960, 39,964.53 and 16,384.75

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Solution

The fourth proportional to 28,960, 39,964.53 and 16,384.75 is: 22,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,960 : 39,964.53 = 16,384.75 : x
  2. Step 2: Convert to fraction form
    28,960/39,964.53 = 16,384.75/x
  3. Step 3: Cross multiply
    28,960x = 39,964.53 × 16,384.75
  4. Step 4: Simplify right side
    28,960x = 654,808,832.92
  5. Step 5: Solve for x
    x = 654,808,832.92/28,960
  6. Step 6: Final answer
    x = 22,610.80

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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.