Home / 28,726.60-39,633.06-16,148.68

Finding the Fourth Proportional to 28,726.60, 39,633.06 and 16,148.68

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Solution

The fourth proportional to 28,726.60, 39,633.06 and 16,148.68 is: 22,279.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,726.60 : 39,633.06 = 16,148.68 : x
  2. Step 2: Convert to fraction form
    28,726.60/39,633.06 = 16,148.68/x
  3. Step 3: Cross multiply
    28,726.60x = 39,633.06 × 16,148.68
  4. Step 4: Simplify right side
    28,726.60x = 640,021,603.36
  5. Step 5: Solve for x
    x = 640,021,603.36/28,726.60
  6. Step 6: Final answer
    x = 22,279.75

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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.