Home / 42,015.09-63,016.16-18,637.41

Finding the Fourth Proportional to 42,015.09, 63,016.16 and 18,637.41

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Solution

The fourth proportional to 42,015.09, 63,016.16 and 18,637.41 is: 27,953.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,015.09 : 63,016.16 = 18,637.41 : x
  2. Step 2: Convert to fraction form
    42,015.09/63,016.16 = 18,637.41/x
  3. Step 3: Cross multiply
    42,015.09x = 63,016.16 × 18,637.41
  4. Step 4: Simplify right side
    42,015.09x = 1,174,457,917.36
  5. Step 5: Solve for x
    x = 1,174,457,917.36/42,015.09
  6. Step 6: Final answer
    x = 27,953.24

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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.