Home / 16,620.78-24,927.90-4,931.40

Finding the Fourth Proportional to 16,620.78, 24,927.90 and 4,931.40

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Solution

The fourth proportional to 16,620.78, 24,927.90 and 4,931.40 is: 7,396.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,620.78 : 24,927.90 = 4,931.40 : x
  2. Step 2: Convert to fraction form
    16,620.78/24,927.90 = 4,931.40/x
  3. Step 3: Cross multiply
    16,620.78x = 24,927.90 × 4,931.40
  4. Step 4: Simplify right side
    16,620.78x = 122,929,446.06
  5. Step 5: Solve for x
    x = 122,929,446.06/16,620.78
  6. Step 6: Final answer
    x = 7,396.13

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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.