Home / 39,378.30-59,047.05-11,672.70

Finding the Fourth Proportional to 39,378.30, 59,047.05 and 11,672.70

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Solution

The fourth proportional to 39,378.30, 59,047.05 and 11,672.70 is: 17,503.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,378.30 : 59,047.05 = 11,672.70 : x
  2. Step 2: Convert to fraction form
    39,378.30/59,047.05 = 11,672.70/x
  3. Step 3: Cross multiply
    39,378.30x = 59,047.05 × 11,672.70
  4. Step 4: Simplify right side
    39,378.30x = 689,238,500.54
  5. Step 5: Solve for x
    x = 689,238,500.54/39,378.30
  6. Step 6: Final answer
    x = 17,503.00

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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.