Home / 28,756.13-39,705.09-28,296.86

Finding the Fourth Proportional to 28,756.13, 39,705.09 and 28,296.86

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Solution

The fourth proportional to 28,756.13, 39,705.09 and 28,296.86 is: 39,070.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.13 : 39,705.09 = 28,296.86 : x
  2. Step 2: Convert to fraction form
    28,756.13/39,705.09 = 28,296.86/x
  3. Step 3: Cross multiply
    28,756.13x = 39,705.09 × 28,296.86
  4. Step 4: Simplify right side
    28,756.13x = 1,123,529,373.02
  5. Step 5: Solve for x
    x = 1,123,529,373.02/28,756.13
  6. Step 6: Final answer
    x = 39,070.95

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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.