Home / 28,755.13-39,703.71-28,295.86

Finding the Fourth Proportional to 28,755.13, 39,703.71 and 28,295.86

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Solution

The fourth proportional to 28,755.13, 39,703.71 and 28,295.86 is: 39,069.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,755.13 : 39,703.71 = 28,295.86 : x
  2. Step 2: Convert to fraction form
    28,755.13/39,703.71 = 28,295.86/x
  3. Step 3: Cross multiply
    28,755.13x = 39,703.71 × 28,295.86
  4. Step 4: Simplify right side
    28,755.13x = 1,123,450,619.64
  5. Step 5: Solve for x
    x = 1,123,450,619.64/28,755.13
  6. Step 6: Final answer
    x = 39,069.57

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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.