Home / 19,735.36-27,235.20-11,352.40

Finding the Fourth Proportional to 19,735.36, 27,235.20 and 11,352.40

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Solution

The fourth proportional to 19,735.36, 27,235.20 and 11,352.40 is: 15,666.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,735.36 : 27,235.20 = 11,352.40 : x
  2. Step 2: Convert to fraction form
    19,735.36/27,235.20 = 11,352.40/x
  3. Step 3: Cross multiply
    19,735.36x = 27,235.20 × 11,352.40
  4. Step 4: Simplify right side
    19,735.36x = 309,184,884.48
  5. Step 5: Solve for x
    x = 309,184,884.48/19,735.36
  6. Step 6: Final answer
    x = 15,666.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.