Home / 28,304.87-42,457.70-10,775.66

Finding the Fourth Proportional to 28,304.87, 42,457.70 and 10,775.66

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Solution

The fourth proportional to 28,304.87, 42,457.70 and 10,775.66 is: 16,163.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,304.87 : 42,457.70 = 10,775.66 : x
  2. Step 2: Convert to fraction form
    28,304.87/42,457.70 = 10,775.66/x
  3. Step 3: Cross multiply
    28,304.87x = 42,457.70 × 10,775.66
  4. Step 4: Simplify right side
    28,304.87x = 457,509,554.23
  5. Step 5: Solve for x
    x = 457,509,554.23/28,304.87
  6. Step 6: Final answer
    x = 16,163.64

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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.