Home / 19,907.20-29,838.16-10,404.87

Finding the Fourth Proportional to 19,907.20, 29,838.16 and 10,404.87

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Solution

The fourth proportional to 19,907.20, 29,838.16 and 10,404.87 is: 15,595.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.20 : 29,838.16 = 10,404.87 : x
  2. Step 2: Convert to fraction form
    19,907.20/29,838.16 = 10,404.87/x
  3. Step 3: Cross multiply
    19,907.20x = 29,838.16 × 10,404.87
  4. Step 4: Simplify right side
    19,907.20x = 310,461,974.62
  5. Step 5: Solve for x
    x = 310,461,974.62/19,907.20
  6. Step 6: Final answer
    x = 15,595.47

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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.