Home / 20,249.40-30,374.10-15,065.40

Finding the Fourth Proportional to 20,249.40, 30,374.10 and 15,065.40

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Solution

The fourth proportional to 20,249.40, 30,374.10 and 15,065.40 is: 22,598.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.40 : 30,374.10 = 15,065.40 : x
  2. Step 2: Convert to fraction form
    20,249.40/30,374.10 = 15,065.40/x
  3. Step 3: Cross multiply
    20,249.40x = 30,374.10 × 15,065.40
  4. Step 4: Simplify right side
    20,249.40x = 457,597,966.14
  5. Step 5: Solve for x
    x = 457,597,966.14/20,249.40
  6. Step 6: Final answer
    x = 22,598.10

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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.