Home / 28,398.25-42,597.36-7,621.75

Finding the Fourth Proportional to 28,398.25, 42,597.36 and 7,621.75

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Solution

The fourth proportional to 28,398.25, 42,597.36 and 7,621.75 is: 11,432.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,398.25 : 42,597.36 = 7,621.75 : x
  2. Step 2: Convert to fraction form
    28,398.25/42,597.36 = 7,621.75/x
  3. Step 3: Cross multiply
    28,398.25x = 42,597.36 × 7,621.75
  4. Step 4: Simplify right side
    28,398.25x = 324,666,263.65
  5. Step 5: Solve for x
    x = 324,666,263.65/28,398.25
  6. Step 6: Final answer
    x = 11,432.62

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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.