Home / 39,511.92-59,237.12-19,780.32

Finding the Fourth Proportional to 39,511.92, 59,237.12 and 19,780.32

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Solution

The fourth proportional to 39,511.92, 59,237.12 and 19,780.32 is: 29,655.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,511.92 : 59,237.12 = 19,780.32 : x
  2. Step 2: Convert to fraction form
    39,511.92/59,237.12 = 19,780.32/x
  3. Step 3: Cross multiply
    39,511.92x = 59,237.12 × 19,780.32
  4. Step 4: Simplify right side
    39,511.92x = 1,171,729,189.48
  5. Step 5: Solve for x
    x = 1,171,729,189.48/39,511.92
  6. Step 6: Final answer
    x = 29,655.08

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1.5x scale

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.