Home / 28,633.68-39,513.96-15,886.44

Finding the Fourth Proportional to 28,633.68, 39,513.96 and 15,886.44

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Solution

The fourth proportional to 28,633.68, 39,513.96 and 15,886.44 is: 21,923.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,633.68 : 39,513.96 = 15,886.44 : x
  2. Step 2: Convert to fraction form
    28,633.68/39,513.96 = 15,886.44/x
  3. Step 3: Cross multiply
    28,633.68x = 39,513.96 × 15,886.44
  4. Step 4: Simplify right side
    28,633.68x = 627,736,154.70
  5. Step 5: Solve for x
    x = 627,736,154.70/28,633.68
  6. Step 6: Final answer
    x = 21,923.00

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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.