Home / 31,122.28-46,639.68-13,555.27

Finding the Fourth Proportional to 31,122.28, 46,639.68 and 13,555.27

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Solution

The fourth proportional to 31,122.28, 46,639.68 and 13,555.27 is: 20,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,122.28 : 46,639.68 = 13,555.27 : x
  2. Step 2: Convert to fraction form
    31,122.28/46,639.68 = 13,555.27/x
  3. Step 3: Cross multiply
    31,122.28x = 46,639.68 × 13,555.27
  4. Step 4: Simplify right side
    31,122.28x = 632,213,455.11
  5. Step 5: Solve for x
    x = 632,213,455.11/31,122.28
  6. Step 6: Final answer
    x = 20,313.85

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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.