Home / 30,858.30-42,584.61-16,711.20

Finding the Fourth Proportional to 30,858.30, 42,584.61 and 16,711.20

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Solution

The fourth proportional to 30,858.30, 42,584.61 and 16,711.20 is: 23,061.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,858.30 : 42,584.61 = 16,711.20 : x
  2. Step 2: Convert to fraction form
    30,858.30/42,584.61 = 16,711.20/x
  3. Step 3: Cross multiply
    30,858.30x = 42,584.61 × 16,711.20
  4. Step 4: Simplify right side
    30,858.30x = 711,639,934.63
  5. Step 5: Solve for x
    x = 711,639,934.63/30,858.30
  6. Step 6: Final answer
    x = 23,061.54

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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.