Home / 20,359.60-30,539.40-16,903.60

Finding the Fourth Proportional to 20,359.60, 30,539.40 and 16,903.60

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Solution

The fourth proportional to 20,359.60, 30,539.40 and 16,903.60 is: 25,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,359.60 : 30,539.40 = 16,903.60 : x
  2. Step 2: Convert to fraction form
    20,359.60/30,539.40 = 16,903.60/x
  3. Step 3: Cross multiply
    20,359.60x = 30,539.40 × 16,903.60
  4. Step 4: Simplify right side
    20,359.60x = 516,225,801.84
  5. Step 5: Solve for x
    x = 516,225,801.84/20,359.60
  6. Step 6: Final answer
    x = 25,355.40

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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.