Home / 19,488.88-29,240.64-11,703.28

Finding the Fourth Proportional to 19,488.88, 29,240.64 and 11,703.28

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Solution

The fourth proportional to 19,488.88, 29,240.64 and 11,703.28 is: 17,559.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,488.88 : 29,240.64 = 11,703.28 : x
  2. Step 2: Convert to fraction form
    19,488.88/29,240.64 = 11,703.28/x
  3. Step 3: Cross multiply
    19,488.88x = 29,240.64 × 11,703.28
  4. Step 4: Simplify right side
    19,488.88x = 342,211,397.30
  5. Step 5: Solve for x
    x = 342,211,397.30/19,488.88
  6. Step 6: Final answer
    x = 17,559.32

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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.