Home / 28,240.31-42,351.82-9,515.32

Finding the Fourth Proportional to 28,240.31, 42,351.82 and 9,515.32

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Solution

The fourth proportional to 28,240.31, 42,351.82 and 9,515.32 is: 14,270.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240.31 : 42,351.82 = 9,515.32 : x
  2. Step 2: Convert to fraction form
    28,240.31/42,351.82 = 9,515.32/x
  3. Step 3: Cross multiply
    28,240.31x = 42,351.82 × 9,515.32
  4. Step 4: Simplify right side
    28,240.31x = 402,990,990.21
  5. Step 5: Solve for x
    x = 402,990,990.21/28,240.31
  6. Step 6: Final answer
    x = 14,270.06

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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.