Home / 55,280.10-82,920.15-18,339.30

Finding the Fourth Proportional to 55,280.10, 82,920.15 and 18,339.30

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Solution

The fourth proportional to 55,280.10, 82,920.15 and 18,339.30 is: 27,508.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,280.10 : 82,920.15 = 18,339.30 : x
  2. Step 2: Convert to fraction form
    55,280.10/82,920.15 = 18,339.30/x
  3. Step 3: Cross multiply
    55,280.10x = 82,920.15 × 18,339.30
  4. Step 4: Simplify right side
    55,280.10x = 1,520,697,506.90
  5. Step 5: Solve for x
    x = 1,520,697,506.90/55,280.10
  6. Step 6: Final answer
    x = 27,508.95

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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.