Home / 39,076.16-53,924.28-21,170.48

Finding the Fourth Proportional to 39,076.16, 53,924.28 and 21,170.48

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Solution

The fourth proportional to 39,076.16, 53,924.28 and 21,170.48 is: 29,214.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,076.16 : 53,924.28 = 21,170.48 : x
  2. Step 2: Convert to fraction form
    39,076.16/53,924.28 = 21,170.48/x
  3. Step 3: Cross multiply
    39,076.16x = 53,924.28 × 21,170.48
  4. Step 4: Simplify right side
    39,076.16x = 1,141,602,891.25
  5. Step 5: Solve for x
    x = 1,141,602,891.25/39,076.16
  6. Step 6: Final answer
    x = 29,214.82

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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.