Home / 31,513.09-43,486.09-18,085.45

Finding the Fourth Proportional to 31,513.09, 43,486.09 and 18,085.45

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Solution

The fourth proportional to 31,513.09, 43,486.09 and 18,085.45 is: 24,956.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,513.09 : 43,486.09 = 18,085.45 : x
  2. Step 2: Convert to fraction form
    31,513.09/43,486.09 = 18,085.45/x
  3. Step 3: Cross multiply
    31,513.09x = 43,486.09 × 18,085.45
  4. Step 4: Simplify right side
    31,513.09x = 786,465,506.39
  5. Step 5: Solve for x
    x = 786,465,506.39/31,513.09
  6. Step 6: Final answer
    x = 24,956.79

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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.