Home / 21,909.39-32,887.47-9,435.60

Finding the Fourth Proportional to 21,909.39, 32,887.47 and 9,435.60

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Solution

The fourth proportional to 21,909.39, 32,887.47 and 9,435.60 is: 14,163.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,909.39 : 32,887.47 = 9,435.60 : x
  2. Step 2: Convert to fraction form
    21,909.39/32,887.47 = 9,435.60/x
  3. Step 3: Cross multiply
    21,909.39x = 32,887.47 × 9,435.60
  4. Step 4: Simplify right side
    21,909.39x = 310,313,011.93
  5. Step 5: Solve for x
    x = 310,313,011.93/21,909.39
  6. Step 6: Final answer
    x = 14,163.47

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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.