Home / 28,157.34-38,850.58-16,830.50

Finding the Fourth Proportional to 28,157.34, 38,850.58 and 16,830.50

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Solution

The fourth proportional to 28,157.34, 38,850.58 and 16,830.50 is: 23,222.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157.34 : 38,850.58 = 16,830.50 : x
  2. Step 2: Convert to fraction form
    28,157.34/38,850.58 = 16,830.50/x
  3. Step 3: Cross multiply
    28,157.34x = 38,850.58 × 16,830.50
  4. Step 4: Simplify right side
    28,157.34x = 653,874,686.69
  5. Step 5: Solve for x
    x = 653,874,686.69/28,157.34
  6. Step 6: Final answer
    x = 23,222.18

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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.