Home / 24,780.78-37,170.68-9,989.36

Finding the Fourth Proportional to 24,780.78, 37,170.68 and 9,989.36

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Solution

The fourth proportional to 24,780.78, 37,170.68 and 9,989.36 is: 14,983.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,780.78 : 37,170.68 = 9,989.36 : x
  2. Step 2: Convert to fraction form
    24,780.78/37,170.68 = 9,989.36/x
  3. Step 3: Cross multiply
    24,780.78x = 37,170.68 × 9,989.36
  4. Step 4: Simplify right side
    24,780.78x = 371,311,303.96
  5. Step 5: Solve for x
    x = 371,311,303.96/24,780.78
  6. Step 6: Final answer
    x = 14,983.84

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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.