Home / 35,636.16-49,178.26-19,720.96

Finding the Fourth Proportional to 35,636.16, 49,178.26 and 19,720.96

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Solution

The fourth proportional to 35,636.16, 49,178.26 and 19,720.96 is: 27,215.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,636.16 : 49,178.26 = 19,720.96 : x
  2. Step 2: Convert to fraction form
    35,636.16/49,178.26 = 19,720.96/x
  3. Step 3: Cross multiply
    35,636.16x = 49,178.26 × 19,720.96
  4. Step 4: Simplify right side
    35,636.16x = 969,842,498.33
  5. Step 5: Solve for x
    x = 969,842,498.33/35,636.16
  6. Step 6: Final answer
    x = 27,215.12

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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.