Home / 31,457.75-43,410.94-18,036.86

Finding the Fourth Proportional to 31,457.75, 43,410.94 and 18,036.86

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Solution

The fourth proportional to 31,457.75, 43,410.94 and 18,036.86 is: 24,890.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,457.75 : 43,410.94 = 18,036.86 : x
  2. Step 2: Convert to fraction form
    31,457.75/43,410.94 = 18,036.86/x
  3. Step 3: Cross multiply
    31,457.75x = 43,410.94 × 18,036.86
  4. Step 4: Simplify right side
    31,457.75x = 782,996,785.10
  5. Step 5: Solve for x
    x = 782,996,785.10/31,457.75
  6. Step 6: Final answer
    x = 24,890.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.