Home / 39,763.19-59,644.80-18,687.76

Finding the Fourth Proportional to 39,763.19, 59,644.80 and 18,687.76

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Solution

The fourth proportional to 39,763.19, 59,644.80 and 18,687.76 is: 28,031.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,763.19 : 59,644.80 = 18,687.76 : x
  2. Step 2: Convert to fraction form
    39,763.19/59,644.80 = 18,687.76/x
  3. Step 3: Cross multiply
    39,763.19x = 59,644.80 × 18,687.76
  4. Step 4: Simplify right side
    39,763.19x = 1,114,627,558.54
  5. Step 5: Solve for x
    x = 1,114,627,558.54/39,763.19
  6. Step 6: Final answer
    x = 28,031.64

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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.