Home / 32,011.20-48,016.80-20,289.60

Finding the Fourth Proportional to 32,011.20, 48,016.80 and 20,289.60

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Solution

The fourth proportional to 32,011.20, 48,016.80 and 20,289.60 is: 30,434.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,011.20 : 48,016.80 = 20,289.60 : x
  2. Step 2: Convert to fraction form
    32,011.20/48,016.80 = 20,289.60/x
  3. Step 3: Cross multiply
    32,011.20x = 48,016.80 × 20,289.60
  4. Step 4: Simplify right side
    32,011.20x = 974,241,665.28
  5. Step 5: Solve for x
    x = 974,241,665.28/32,011.20
  6. Step 6: Final answer
    x = 30,434.40

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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.