Home / 30,982.40-42,656.64-26,259.20

Finding the Fourth Proportional to 30,982.40, 42,656.64 and 26,259.20

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Solution

The fourth proportional to 30,982.40, 42,656.64 and 26,259.20 is: 36,153.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,982.40 : 42,656.64 = 26,259.20 : x
  2. Step 2: Convert to fraction form
    30,982.40/42,656.64 = 26,259.20/x
  3. Step 3: Cross multiply
    30,982.40x = 42,656.64 × 26,259.20
  4. Step 4: Simplify right side
    30,982.40x = 1,120,129,241.09
  5. Step 5: Solve for x
    x = 1,120,129,241.09/30,982.40
  6. Step 6: Final answer
    x = 36,153.73

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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.