Home / 39,784.11-59,683.23-13,131.57

Finding the Fourth Proportional to 39,784.11, 59,683.23 and 13,131.57

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Solution

The fourth proportional to 39,784.11, 59,683.23 and 13,131.57 is: 19,699.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,784.11 : 59,683.23 = 13,131.57 : x
  2. Step 2: Convert to fraction form
    39,784.11/59,683.23 = 13,131.57/x
  3. Step 3: Cross multiply
    39,784.11x = 59,683.23 × 13,131.57
  4. Step 4: Simplify right side
    39,784.11x = 783,734,400.67
  5. Step 5: Solve for x
    x = 783,734,400.67/39,784.11
  6. Step 6: Final answer
    x = 19,699.68

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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.