Home / 28,439.44-39,246.17-15,692.74

Finding the Fourth Proportional to 28,439.44, 39,246.17 and 15,692.74

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Solution

The fourth proportional to 28,439.44, 39,246.17 and 15,692.74 is: 21,655.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,439.44 : 39,246.17 = 15,692.74 : x
  2. Step 2: Convert to fraction form
    28,439.44/39,246.17 = 15,692.74/x
  3. Step 3: Cross multiply
    28,439.44x = 39,246.17 × 15,692.74
  4. Step 4: Simplify right side
    28,439.44x = 615,879,863.34
  5. Step 5: Solve for x
    x = 615,879,863.34/28,439.44
  6. Step 6: Final answer
    x = 21,655.84

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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.