Home / 28,726.11-39,637.76-16,148.43

Finding the Fourth Proportional to 28,726.11, 39,637.76 and 16,148.43

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Solution

The fourth proportional to 28,726.11, 39,637.76 and 16,148.43 is: 22,282.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,726.11 : 39,637.76 = 16,148.43 : x
  2. Step 2: Convert to fraction form
    28,726.11/39,637.76 = 16,148.43/x
  3. Step 3: Cross multiply
    28,726.11x = 39,637.76 × 16,148.43
  4. Step 4: Simplify right side
    28,726.11x = 640,087,511.97
  5. Step 5: Solve for x
    x = 640,087,511.97/28,726.11
  6. Step 6: Final answer
    x = 22,282.43

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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.