Home / 19,490.12-29,243.28-10,724.30

Finding the Fourth Proportional to 19,490.12, 29,243.28 and 10,724.30

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Solution

The fourth proportional to 19,490.12, 29,243.28 and 10,724.30 is: 16,090.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,490.12 : 29,243.28 = 10,724.30 : x
  2. Step 2: Convert to fraction form
    19,490.12/29,243.28 = 10,724.30/x
  3. Step 3: Cross multiply
    19,490.12x = 29,243.28 × 10,724.30
  4. Step 4: Simplify right side
    19,490.12x = 313,613,707.70
  5. Step 5: Solve for x
    x = 313,613,707.70/19,490.12
  6. Step 6: Final answer
    x = 16,090.91

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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.