Home / 31,302.86-43,187.18-18,553.46

Finding the Fourth Proportional to 31,302.86, 43,187.18 and 18,553.46

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Solution

The fourth proportional to 31,302.86, 43,187.18 and 18,553.46 is: 25,597.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,302.86 : 43,187.18 = 18,553.46 : x
  2. Step 2: Convert to fraction form
    31,302.86/43,187.18 = 18,553.46/x
  3. Step 3: Cross multiply
    31,302.86x = 43,187.18 × 18,553.46
  4. Step 4: Simplify right side
    31,302.86x = 801,271,616.64
  5. Step 5: Solve for x
    x = 801,271,616.64/31,302.86
  6. Step 6: Final answer
    x = 25,597.39

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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.