Home / 31,485.09-43,448.85-18,055.56

Finding the Fourth Proportional to 31,485.09, 43,448.85 and 18,055.56

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Solution

The fourth proportional to 31,485.09, 43,448.85 and 18,055.56 is: 24,916.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,485.09 : 43,448.85 = 18,055.56 : x
  2. Step 2: Convert to fraction form
    31,485.09/43,448.85 = 18,055.56/x
  3. Step 3: Cross multiply
    31,485.09x = 43,448.85 × 18,055.56
  4. Step 4: Simplify right side
    31,485.09x = 784,493,318.11
  5. Step 5: Solve for x
    x = 784,493,318.11/31,485.09
  6. Step 6: Final answer
    x = 24,916.34

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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.