Home / 20,886.12-31,327.72-9,795.24

Finding the Fourth Proportional to 20,886.12, 31,327.72 and 9,795.24

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Solution

The fourth proportional to 20,886.12, 31,327.72 and 9,795.24 is: 14,692.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886.12 : 31,327.72 = 9,795.24 : x
  2. Step 2: Convert to fraction form
    20,886.12/31,327.72 = 9,795.24/x
  3. Step 3: Cross multiply
    20,886.12x = 31,327.72 × 9,795.24
  4. Step 4: Simplify right side
    20,886.12x = 306,862,536.05
  5. Step 5: Solve for x
    x = 306,862,536.05/20,886.12
  6. Step 6: Final answer
    x = 14,692.18

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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.