Home / 28,208.36-42,316.18-9,480.32

Finding the Fourth Proportional to 28,208.36, 42,316.18 and 9,480.32

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Solution

The fourth proportional to 28,208.36, 42,316.18 and 9,480.32 is: 14,221.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.36 : 42,316.18 = 9,480.32 : x
  2. Step 2: Convert to fraction form
    28,208.36/42,316.18 = 9,480.32/x
  3. Step 3: Cross multiply
    28,208.36x = 42,316.18 × 9,480.32
  4. Step 4: Simplify right side
    28,208.36x = 401,170,927.58
  5. Step 5: Solve for x
    x = 401,170,927.58/28,208.36
  6. Step 6: Final answer
    x = 14,221.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.