Home / 40,788.57-56,333.84-28,080.75

Finding the Fourth Proportional to 40,788.57, 56,333.84 and 28,080.75

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Solution

The fourth proportional to 40,788.57, 56,333.84 and 28,080.75 is: 38,782.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,788.57 : 56,333.84 = 28,080.75 : x
  2. Step 2: Convert to fraction form
    40,788.57/56,333.84 = 28,080.75/x
  3. Step 3: Cross multiply
    40,788.57x = 56,333.84 × 28,080.75
  4. Step 4: Simplify right side
    40,788.57x = 1,581,896,337.18
  5. Step 5: Solve for x
    x = 1,581,896,337.18/40,788.57
  6. Step 6: Final answer
    x = 38,782.83

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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.