Home / 31,758.81-43,826.79-18,329.77

Finding the Fourth Proportional to 31,758.81, 43,826.79 and 18,329.77

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Solution

The fourth proportional to 31,758.81, 43,826.79 and 18,329.77 is: 25,294.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,758.81 : 43,826.79 = 18,329.77 : x
  2. Step 2: Convert to fraction form
    31,758.81/43,826.79 = 18,329.77/x
  3. Step 3: Cross multiply
    31,758.81x = 43,826.79 × 18,329.77
  4. Step 4: Simplify right side
    31,758.81x = 803,334,980.54
  5. Step 5: Solve for x
    x = 803,334,980.54/31,758.81
  6. Step 6: Final answer
    x = 25,294.87

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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.