Home / 28,384.28-39,168.42-16,445.49

Finding the Fourth Proportional to 28,384.28, 39,168.42 and 16,445.49

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Solution

The fourth proportional to 28,384.28, 39,168.42 and 16,445.49 is: 22,693.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,384.28 : 39,168.42 = 16,445.49 : x
  2. Step 2: Convert to fraction form
    28,384.28/39,168.42 = 16,445.49/x
  3. Step 3: Cross multiply
    28,384.28x = 39,168.42 × 16,445.49
  4. Step 4: Simplify right side
    28,384.28x = 644,143,859.43
  5. Step 5: Solve for x
    x = 644,143,859.43/28,384.28
  6. Step 6: Final answer
    x = 22,693.68

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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.