Home / 28,157.69-38,846.54-18,084.72

Finding the Fourth Proportional to 28,157.69, 38,846.54 and 18,084.72

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Solution

The fourth proportional to 28,157.69, 38,846.54 and 18,084.72 is: 24,949.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157.69 : 38,846.54 = 18,084.72 : x
  2. Step 2: Convert to fraction form
    28,157.69/38,846.54 = 18,084.72/x
  3. Step 3: Cross multiply
    28,157.69x = 38,846.54 × 18,084.72
  4. Step 4: Simplify right side
    28,157.69x = 702,528,708.45
  5. Step 5: Solve for x
    x = 702,528,708.45/28,157.69
  6. Step 6: Final answer
    x = 24,949.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.