Home / 39,938.86-59,917.51-11,858.29

Finding the Fourth Proportional to 39,938.86, 59,917.51 and 11,858.29

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Solution

The fourth proportional to 39,938.86, 59,917.51 and 11,858.29 is: 17,790.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,938.86 : 59,917.51 = 11,858.29 : x
  2. Step 2: Convert to fraction form
    39,938.86/59,917.51 = 11,858.29/x
  3. Step 3: Cross multiply
    39,938.86x = 59,917.51 × 11,858.29
  4. Step 4: Simplify right side
    39,938.86x = 710,519,209.66
  5. Step 5: Solve for x
    x = 710,519,209.66/39,938.86
  6. Step 6: Final answer
    x = 17,790.17

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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.