Home / 31,544.09-47,284.23-20,457.83

Finding the Fourth Proportional to 31,544.09, 47,284.23 and 20,457.83

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Solution

The fourth proportional to 31,544.09, 47,284.23 and 20,457.83 is: 30,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,544.09 : 47,284.23 = 20,457.83 : x
  2. Step 2: Convert to fraction form
    31,544.09/47,284.23 = 20,457.83/x
  3. Step 3: Cross multiply
    31,544.09x = 47,284.23 × 20,457.83
  4. Step 4: Simplify right side
    31,544.09x = 967,332,739.02
  5. Step 5: Solve for x
    x = 967,332,739.02/31,544.09
  6. Step 6: Final answer
    x = 30,666.05

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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.