Home / 28,686.90-42,993.84-16,213.88

Finding the Fourth Proportional to 28,686.90, 42,993.84 and 16,213.88

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Solution

The fourth proportional to 28,686.90, 42,993.84 and 16,213.88 is: 24,300.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686.90 : 42,993.84 = 16,213.88 : x
  2. Step 2: Convert to fraction form
    28,686.90/42,993.84 = 16,213.88/x
  3. Step 3: Cross multiply
    28,686.90x = 42,993.84 × 16,213.88
  4. Step 4: Simplify right side
    28,686.90x = 697,096,962.50
  5. Step 5: Solve for x
    x = 697,096,962.50/28,686.90
  6. Step 6: Final answer
    x = 24,300.18

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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.