Home / 20,009.48-30,005.42-10,647.24

Finding the Fourth Proportional to 20,009.48, 30,005.42 and 10,647.24

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Solution

The fourth proportional to 20,009.48, 30,005.42 and 10,647.24 is: 15,966.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.48 : 30,005.42 = 10,647.24 : x
  2. Step 2: Convert to fraction form
    20,009.48/30,005.42 = 10,647.24/x
  3. Step 3: Cross multiply
    20,009.48x = 30,005.42 × 10,647.24
  4. Step 4: Simplify right side
    20,009.48x = 319,474,908.04
  5. Step 5: Solve for x
    x = 319,474,908.04/20,009.48
  6. Step 6: Final answer
    x = 15,966.18

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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.