Home / 19,969.94-27,567.36-12,899.80

Finding the Fourth Proportional to 19,969.94, 27,567.36 and 12,899.80

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Solution

The fourth proportional to 19,969.94, 27,567.36 and 12,899.80 is: 17,807.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,969.94 : 27,567.36 = 12,899.80 : x
  2. Step 2: Convert to fraction form
    19,969.94/27,567.36 = 12,899.80/x
  3. Step 3: Cross multiply
    19,969.94x = 27,567.36 × 12,899.80
  4. Step 4: Simplify right side
    19,969.94x = 355,613,430.53
  5. Step 5: Solve for x
    x = 355,613,430.53/19,969.94
  6. Step 6: Final answer
    x = 17,807.44

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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.