Home / 20,865.48-31,141.47-18,041.82

Finding the Fourth Proportional to 20,865.48, 31,141.47 and 18,041.82

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Solution

The fourth proportional to 20,865.48, 31,141.47 and 18,041.82 is: 26,927.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,865.48 : 31,141.47 = 18,041.82 : x
  2. Step 2: Convert to fraction form
    20,865.48/31,141.47 = 18,041.82/x
  3. Step 3: Cross multiply
    20,865.48x = 31,141.47 × 18,041.82
  4. Step 4: Simplify right side
    20,865.48x = 561,848,796.28
  5. Step 5: Solve for x
    x = 561,848,796.28/20,865.48
  6. Step 6: Final answer
    x = 26,927.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.