Home / 28,282.16-42,405.80-9,560.42

Finding the Fourth Proportional to 28,282.16, 42,405.80 and 9,560.42

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Solution

The fourth proportional to 28,282.16, 42,405.80 and 9,560.42 is: 14,334.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,282.16 : 42,405.80 = 9,560.42 : x
  2. Step 2: Convert to fraction form
    28,282.16/42,405.80 = 9,560.42/x
  3. Step 3: Cross multiply
    28,282.16x = 42,405.80 × 9,560.42
  4. Step 4: Simplify right side
    28,282.16x = 405,417,316.65
  5. Step 5: Solve for x
    x = 405,417,316.65/28,282.16
  6. Step 6: Final answer
    x = 14,334.74

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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.