Home / 28,438.29-39,238.43-17,104.77

Finding the Fourth Proportional to 28,438.29, 39,238.43 and 17,104.77

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Solution

The fourth proportional to 28,438.29, 39,238.43 and 17,104.77 is: 23,600.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,438.29 : 39,238.43 = 17,104.77 : x
  2. Step 2: Convert to fraction form
    28,438.29/39,238.43 = 17,104.77/x
  3. Step 3: Cross multiply
    28,438.29x = 39,238.43 × 17,104.77
  4. Step 4: Simplify right side
    28,438.29x = 671,164,234.79
  5. Step 5: Solve for x
    x = 671,164,234.79/28,438.29
  6. Step 6: Final answer
    x = 23,600.72

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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.