Home / 30,887.25-42,624.50-16,740.15

Finding the Fourth Proportional to 30,887.25, 42,624.50 and 16,740.15

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Solution

The fourth proportional to 30,887.25, 42,624.50 and 16,740.15 is: 23,101.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,887.25 : 42,624.50 = 16,740.15 : x
  2. Step 2: Convert to fraction form
    30,887.25/42,624.50 = 16,740.15/x
  3. Step 3: Cross multiply
    30,887.25x = 42,624.50 × 16,740.15
  4. Step 4: Simplify right side
    30,887.25x = 713,540,439.97
  5. Step 5: Solve for x
    x = 713,540,439.97/30,887.25
  6. Step 6: Final answer
    x = 23,101.46

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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.