Home / 28,438.29-39,242.98-17,105.68

Finding the Fourth Proportional to 28,438.29, 39,242.98 and 17,105.68

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Solution

The fourth proportional to 28,438.29, 39,242.98 and 17,105.68 is: 23,604.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,438.29 : 39,242.98 = 17,105.68 : x
  2. Step 2: Convert to fraction form
    28,438.29/39,242.98 = 17,105.68/x
  3. Step 3: Cross multiply
    28,438.29x = 39,242.98 × 17,105.68
  4. Step 4: Simplify right side
    28,438.29x = 671,277,928.56
  5. Step 5: Solve for x
    x = 671,277,928.56/28,438.29
  6. Step 6: Final answer
    x = 23,604.72

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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.