Home / 19,606.20-29,409.30-13,385.40

Finding the Fourth Proportional to 19,606.20, 29,409.30 and 13,385.40

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Solution

The fourth proportional to 19,606.20, 29,409.30 and 13,385.40 is: 20,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,606.20 : 29,409.30 = 13,385.40 : x
  2. Step 2: Convert to fraction form
    19,606.20/29,409.30 = 13,385.40/x
  3. Step 3: Cross multiply
    19,606.20x = 29,409.30 × 13,385.40
  4. Step 4: Simplify right side
    19,606.20x = 393,655,244.22
  5. Step 5: Solve for x
    x = 393,655,244.22/19,606.20
  6. Step 6: Final answer
    x = 20,078.10

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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.