Home / 35,783.16-49,378.68-19,867.20

Finding the Fourth Proportional to 35,783.16, 49,378.68 and 19,867.20

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Solution

The fourth proportional to 35,783.16, 49,378.68 and 19,867.20 is: 27,415.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,783.16 : 49,378.68 = 19,867.20 : x
  2. Step 2: Convert to fraction form
    35,783.16/49,378.68 = 19,867.20/x
  3. Step 3: Cross multiply
    35,783.16x = 49,378.68 × 19,867.20
  4. Step 4: Simplify right side
    35,783.16x = 981,016,111.30
  5. Step 5: Solve for x
    x = 981,016,111.30/35,783.16
  6. Step 6: Final answer
    x = 27,415.58

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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.