Home / 28,388.16-39,175.67-16,458.41

Finding the Fourth Proportional to 28,388.16, 39,175.67 and 16,458.41

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Solution

The fourth proportional to 28,388.16, 39,175.67 and 16,458.41 is: 22,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,388.16 : 39,175.67 = 16,458.41 : x
  2. Step 2: Convert to fraction form
    28,388.16/39,175.67 = 16,458.41/x
  3. Step 3: Cross multiply
    28,388.16x = 39,175.67 × 16,458.41
  4. Step 4: Simplify right side
    28,388.16x = 644,768,960.71
  5. Step 5: Solve for x
    x = 644,768,960.71/28,388.16
  6. Step 6: Final answer
    x = 22,712.60

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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.