Home / 39,763.98-59,666.40-21,991.37

Finding the Fourth Proportional to 39,763.98, 59,666.40 and 21,991.37

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Solution

The fourth proportional to 39,763.98, 59,666.40 and 21,991.37 is: 32,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,763.98 : 59,666.40 = 21,991.37 : x
  2. Step 2: Convert to fraction form
    39,763.98/59,666.40 = 21,991.37/x
  3. Step 3: Cross multiply
    39,763.98x = 59,666.40 × 21,991.37
  4. Step 4: Simplify right side
    39,763.98x = 1,312,145,580.64
  5. Step 5: Solve for x
    x = 1,312,145,580.64/39,763.98
  6. Step 6: Final answer
    x = 32,998.35

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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.