Home / 53,997.80-81,001.74-20,254.82

Finding the Fourth Proportional to 53,997.80, 81,001.74 and 20,254.82

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Solution

The fourth proportional to 53,997.80, 81,001.74 and 20,254.82 is: 30,384.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,997.80 : 81,001.74 = 20,254.82 : x
  2. Step 2: Convert to fraction form
    53,997.80/81,001.74 = 20,254.82/x
  3. Step 3: Cross multiply
    53,997.80x = 81,001.74 × 20,254.82
  4. Step 4: Simplify right side
    53,997.80x = 1,640,675,663.39
  5. Step 5: Solve for x
    x = 1,640,675,663.39/53,997.80
  6. Step 6: Final answer
    x = 30,384.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.