Home / 31,026.79-42,825.99-20,273.24

Finding the Fourth Proportional to 31,026.79, 42,825.99 and 20,273.24

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Solution

The fourth proportional to 31,026.79, 42,825.99 and 20,273.24 is: 27,982.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,026.79 : 42,825.99 = 20,273.24 : x
  2. Step 2: Convert to fraction form
    31,026.79/42,825.99 = 20,273.24/x
  3. Step 3: Cross multiply
    31,026.79x = 42,825.99 × 20,273.24
  4. Step 4: Simplify right side
    31,026.79x = 868,221,573.51
  5. Step 5: Solve for x
    x = 868,221,573.51/31,026.79
  6. Step 6: Final answer
    x = 27,982.96

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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.