Home / 19,623.99-29,438.52-7,142.10

Finding the Fourth Proportional to 19,623.99, 29,438.52 and 7,142.10

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Solution

The fourth proportional to 19,623.99, 29,438.52 and 7,142.10 is: 10,714.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,623.99 : 29,438.52 = 7,142.10 : x
  2. Step 2: Convert to fraction form
    19,623.99/29,438.52 = 7,142.10/x
  3. Step 3: Cross multiply
    19,623.99x = 29,438.52 × 7,142.10
  4. Step 4: Simplify right side
    19,623.99x = 210,252,853.69
  5. Step 5: Solve for x
    x = 210,252,853.69/19,623.99
  6. Step 6: Final answer
    x = 10,714.07

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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.