Home / 19,308.65-28,913.33-13,377.09

Finding the Fourth Proportional to 19,308.65, 28,913.33 and 13,377.09

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Solution

The fourth proportional to 19,308.65, 28,913.33 and 13,377.09 is: 20,031.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,308.65 : 28,913.33 = 13,377.09 : x
  2. Step 2: Convert to fraction form
    19,308.65/28,913.33 = 13,377.09/x
  3. Step 3: Cross multiply
    19,308.65x = 28,913.33 × 13,377.09
  4. Step 4: Simplify right side
    19,308.65x = 386,776,251.05
  5. Step 5: Solve for x
    x = 386,776,251.05/19,308.65
  6. Step 6: Final answer
    x = 20,031.24

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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.