Home / 28,434.24-42,622.81-15,959.84

Finding the Fourth Proportional to 28,434.24, 42,622.81 and 15,959.84

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Solution

The fourth proportional to 28,434.24, 42,622.81 and 15,959.84 is: 23,923.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,434.24 : 42,622.81 = 15,959.84 : x
  2. Step 2: Convert to fraction form
    28,434.24/42,622.81 = 15,959.84/x
  3. Step 3: Cross multiply
    28,434.24x = 42,622.81 × 15,959.84
  4. Step 4: Simplify right side
    28,434.24x = 680,252,974.94
  5. Step 5: Solve for x
    x = 680,252,974.94/28,434.24
  6. Step 6: Final answer
    x = 23,923.73

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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.