Home / 28,595.68-39,443.64-20,625.28

Finding the Fourth Proportional to 28,595.68, 39,443.64 and 20,625.28

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Solution

The fourth proportional to 28,595.68, 39,443.64 and 20,625.28 is: 28,449.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,595.68 : 39,443.64 = 20,625.28 : x
  2. Step 2: Convert to fraction form
    28,595.68/39,443.64 = 20,625.28/x
  3. Step 3: Cross multiply
    28,595.68x = 39,443.64 × 20,625.28
  4. Step 4: Simplify right side
    28,595.68x = 813,536,119.22
  5. Step 5: Solve for x
    x = 813,536,119.22/28,595.68
  6. Step 6: Final answer
    x = 28,449.62

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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.