Home / 19,919.93-27,488.40-10,965.98

Finding the Fourth Proportional to 19,919.93, 27,488.40 and 10,965.98

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Solution

The fourth proportional to 19,919.93, 27,488.40 and 10,965.98 is: 15,132.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.93 : 27,488.40 = 10,965.98 : x
  2. Step 2: Convert to fraction form
    19,919.93/27,488.40 = 10,965.98/x
  3. Step 3: Cross multiply
    19,919.93x = 27,488.40 × 10,965.98
  4. Step 4: Simplify right side
    19,919.93x = 301,437,244.63
  5. Step 5: Solve for x
    x = 301,437,244.63/19,919.93
  6. Step 6: Final answer
    x = 15,132.44

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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.