Home / 31,465.89-43,421.61-18,027.81

Finding the Fourth Proportional to 31,465.89, 43,421.61 and 18,027.81

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Solution

The fourth proportional to 31,465.89, 43,421.61 and 18,027.81 is: 24,877.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,465.89 : 43,421.61 = 18,027.81 : x
  2. Step 2: Convert to fraction form
    31,465.89/43,421.61 = 18,027.81/x
  3. Step 3: Cross multiply
    31,465.89x = 43,421.61 × 18,027.81
  4. Step 4: Simplify right side
    31,465.89x = 782,796,534.97
  5. Step 5: Solve for x
    x = 782,796,534.97/31,465.89
  6. Step 6: Final answer
    x = 24,877.62

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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.