Home / 20,567.25-28,355.35-15,441.06

Finding the Fourth Proportional to 20,567.25, 28,355.35 and 15,441.06

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Solution

The fourth proportional to 20,567.25, 28,355.35 and 15,441.06 is: 21,288.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.25 : 28,355.35 = 15,441.06 : x
  2. Step 2: Convert to fraction form
    20,567.25/28,355.35 = 15,441.06/x
  3. Step 3: Cross multiply
    20,567.25x = 28,355.35 × 15,441.06
  4. Step 4: Simplify right side
    20,567.25x = 437,836,583.47
  5. Step 5: Solve for x
    x = 437,836,583.47/20,567.25
  6. Step 6: Final answer
    x = 21,288.05

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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.