Home / 39,666.99-54,741.87-21,762.53

Finding the Fourth Proportional to 39,666.99, 54,741.87 and 21,762.53

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Solution

The fourth proportional to 39,666.99, 54,741.87 and 21,762.53 is: 30,033.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,666.99 : 54,741.87 = 21,762.53 : x
  2. Step 2: Convert to fraction form
    39,666.99/54,741.87 = 21,762.53/x
  3. Step 3: Cross multiply
    39,666.99x = 54,741.87 × 21,762.53
  4. Step 4: Simplify right side
    39,666.99x = 1,191,321,519.70
  5. Step 5: Solve for x
    x = 1,191,321,519.70/39,666.99
  6. Step 6: Final answer
    x = 30,033.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.