Home / 39,780.00-59,665.55-10,198.53

Finding the Fourth Proportional to 39,780.00, 59,665.55 and 10,198.53

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Solution

The fourth proportional to 39,780.00, 59,665.55 and 10,198.53 is: 15,296.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,780.00 : 59,665.55 = 10,198.53 : x
  2. Step 2: Convert to fraction form
    39,780.00/59,665.55 = 10,198.53/x
  3. Step 3: Cross multiply
    39,780.00x = 59,665.55 × 10,198.53
  4. Step 4: Simplify right side
    39,780.00x = 608,501,131.76
  5. Step 5: Solve for x
    x = 608,501,131.76/39,780.00
  6. Step 6: Final answer
    x = 15,296.66

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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.