Home / 28,291.18-42,441.96-9,316.90

Finding the Fourth Proportional to 28,291.18, 42,441.96 and 9,316.90

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Solution

The fourth proportional to 28,291.18, 42,441.96 and 9,316.90 is: 13,977.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,291.18 : 42,441.96 = 9,316.90 : x
  2. Step 2: Convert to fraction form
    28,291.18/42,441.96 = 9,316.90/x
  3. Step 3: Cross multiply
    28,291.18x = 42,441.96 × 9,316.90
  4. Step 4: Simplify right side
    28,291.18x = 395,427,497.12
  5. Step 5: Solve for x
    x = 395,427,497.12/28,291.18
  6. Step 6: Final answer
    x = 13,977.06

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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.