Home / 31,358.45-47,037.64-13,574.54

Finding the Fourth Proportional to 31,358.45, 47,037.64 and 13,574.54

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Solution

The fourth proportional to 31,358.45, 47,037.64 and 13,574.54 is: 20,361.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,358.45 : 47,037.64 = 13,574.54 : x
  2. Step 2: Convert to fraction form
    31,358.45/47,037.64 = 13,574.54/x
  3. Step 3: Cross multiply
    31,358.45x = 47,037.64 × 13,574.54
  4. Step 4: Simplify right side
    31,358.45x = 638,514,325.69
  5. Step 5: Solve for x
    x = 638,514,325.69/31,358.45
  6. Step 6: Final answer
    x = 20,361.79

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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.