Home / 19,563.20-29,344.80-13,342.40

Finding the Fourth Proportional to 19,563.20, 29,344.80 and 13,342.40

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Solution

The fourth proportional to 19,563.20, 29,344.80 and 13,342.40 is: 20,013.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,563.20 : 29,344.80 = 13,342.40 : x
  2. Step 2: Convert to fraction form
    19,563.20/29,344.80 = 13,342.40/x
  3. Step 3: Cross multiply
    19,563.20x = 29,344.80 × 13,342.40
  4. Step 4: Simplify right side
    19,563.20x = 391,530,059.52
  5. Step 5: Solve for x
    x = 391,530,059.52/19,563.20
  6. Step 6: Final answer
    x = 20,013.60

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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.