Home / 39,713.88-59,572.10-18,939.48

Finding the Fourth Proportional to 39,713.88, 59,572.10 and 18,939.48

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Solution

The fourth proportional to 39,713.88, 59,572.10 and 18,939.48 is: 28,409.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,713.88 : 59,572.10 = 18,939.48 : x
  2. Step 2: Convert to fraction form
    39,713.88/59,572.10 = 18,939.48/x
  3. Step 3: Cross multiply
    39,713.88x = 59,572.10 × 18,939.48
  4. Step 4: Simplify right side
    39,713.88x = 1,128,264,596.51
  5. Step 5: Solve for x
    x = 1,128,264,596.51/39,713.88
  6. Step 6: Final answer
    x = 28,409.83

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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.