Home / 28,104.87-42,157.29-8,397.25

Finding the Fourth Proportional to 28,104.87, 42,157.29 and 8,397.25

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Solution

The fourth proportional to 28,104.87, 42,157.29 and 8,397.25 is: 12,595.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.87 : 42,157.29 = 8,397.25 : x
  2. Step 2: Convert to fraction form
    28,104.87/42,157.29 = 8,397.25/x
  3. Step 3: Cross multiply
    28,104.87x = 42,157.29 × 8,397.25
  4. Step 4: Simplify right side
    28,104.87x = 354,005,303.45
  5. Step 5: Solve for x
    x = 354,005,303.45/28,104.87
  6. Step 6: Final answer
    x = 12,595.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.