Home / 20,062.08-30,112.29-9,681.12

Finding the Fourth Proportional to 20,062.08, 30,112.29 and 9,681.12

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Solution

The fourth proportional to 20,062.08, 30,112.29 and 9,681.12 is: 14,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,062.08 : 30,112.29 = 9,681.12 : x
  2. Step 2: Convert to fraction form
    20,062.08/30,112.29 = 9,681.12/x
  3. Step 3: Cross multiply
    20,062.08x = 30,112.29 × 9,681.12
  4. Step 4: Simplify right side
    20,062.08x = 291,520,692.96
  5. Step 5: Solve for x
    x = 291,520,692.96/20,062.08
  6. Step 6: Final answer
    x = 14,530.93

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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.