Home / 39,155.81-58,681.38-20,396.52

Finding the Fourth Proportional to 39,155.81, 58,681.38 and 20,396.52

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Solution

The fourth proportional to 39,155.81, 58,681.38 and 20,396.52 is: 30,567.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,155.81 : 58,681.38 = 20,396.52 : x
  2. Step 2: Convert to fraction form
    39,155.81/58,681.38 = 20,396.52/x
  3. Step 3: Cross multiply
    39,155.81x = 58,681.38 × 20,396.52
  4. Step 4: Simplify right side
    39,155.81x = 1,196,895,940.80
  5. Step 5: Solve for x
    x = 1,196,895,940.80/39,155.81
  6. Step 6: Final answer
    x = 30,567.52

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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.