Home / 28,390.32-39,175.20-16,453.08

Finding the Fourth Proportional to 28,390.32, 39,175.20 and 16,453.08

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Solution

The fourth proportional to 28,390.32, 39,175.20 and 16,453.08 is: 22,703.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,390.32 : 39,175.20 = 16,453.08 : x
  2. Step 2: Convert to fraction form
    28,390.32/39,175.20 = 16,453.08/x
  3. Step 3: Cross multiply
    28,390.32x = 39,175.20 × 16,453.08
  4. Step 4: Simplify right side
    28,390.32x = 644,552,699.62
  5. Step 5: Solve for x
    x = 644,552,699.62/28,390.32
  6. Step 6: Final answer
    x = 22,703.26

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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.