Home / 30,139.07-45,236.61-15,359.09

Finding the Fourth Proportional to 30,139.07, 45,236.61 and 15,359.09

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Solution

The fourth proportional to 30,139.07, 45,236.61 and 15,359.09 is: 23,052.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,139.07 : 45,236.61 = 15,359.09 : x
  2. Step 2: Convert to fraction form
    30,139.07/45,236.61 = 15,359.09/x
  3. Step 3: Cross multiply
    30,139.07x = 45,236.61 × 15,359.09
  4. Step 4: Simplify right side
    30,139.07x = 694,792,938.10
  5. Step 5: Solve for x
    x = 694,792,938.10/30,139.07
  6. Step 6: Final answer
    x = 23,052.90

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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.