Home / 28,467.30-42,696.15-8,740.50

Finding the Fourth Proportional to 28,467.30, 42,696.15 and 8,740.50

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Solution

The fourth proportional to 28,467.30, 42,696.15 and 8,740.50 is: 13,109.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,467.30 : 42,696.15 = 8,740.50 : x
  2. Step 2: Convert to fraction form
    28,467.30/42,696.15 = 8,740.50/x
  3. Step 3: Cross multiply
    28,467.30x = 42,696.15 × 8,740.50
  4. Step 4: Simplify right side
    28,467.30x = 373,185,699.08
  5. Step 5: Solve for x
    x = 373,185,699.08/28,467.30
  6. Step 6: Final answer
    x = 13,109.28

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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.