Home / 21,349.20-32,023.80-13,563.60

Finding the Fourth Proportional to 21,349.20, 32,023.80 and 13,563.60

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Solution

The fourth proportional to 21,349.20, 32,023.80 and 13,563.60 is: 20,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,349.20 : 32,023.80 = 13,563.60 : x
  2. Step 2: Convert to fraction form
    21,349.20/32,023.80 = 13,563.60/x
  3. Step 3: Cross multiply
    21,349.20x = 32,023.80 × 13,563.60
  4. Step 4: Simplify right side
    21,349.20x = 434,358,013.68
  5. Step 5: Solve for x
    x = 434,358,013.68/21,349.20
  6. Step 6: Final answer
    x = 20,345.40

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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.