Home / 31,457.30-43,412.87-18,030.79

Finding the Fourth Proportional to 31,457.30, 43,412.87 and 18,030.79

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Solution

The fourth proportional to 31,457.30, 43,412.87 and 18,030.79 is: 24,883.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,457.30 : 43,412.87 = 18,030.79 : x
  2. Step 2: Convert to fraction form
    31,457.30/43,412.87 = 18,030.79/x
  3. Step 3: Cross multiply
    31,457.30x = 43,412.87 × 18,030.79
  4. Step 4: Simplify right side
    31,457.30x = 782,768,035.05
  5. Step 5: Solve for x
    x = 782,768,035.05/31,457.30
  6. Step 6: Final answer
    x = 24,883.51

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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.