Home / 19,965.80-29,948.70-14,109.80

Finding the Fourth Proportional to 19,965.80, 29,948.70 and 14,109.80

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Solution

The fourth proportional to 19,965.80, 29,948.70 and 14,109.80 is: 21,164.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,965.80 : 29,948.70 = 14,109.80 : x
  2. Step 2: Convert to fraction form
    19,965.80/29,948.70 = 14,109.80/x
  3. Step 3: Cross multiply
    19,965.80x = 29,948.70 × 14,109.80
  4. Step 4: Simplify right side
    19,965.80x = 422,570,167.26
  5. Step 5: Solve for x
    x = 422,570,167.26/19,965.80
  6. Step 6: Final answer
    x = 21,164.70

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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.