Home / 23,312.20-34,979.10-12,231.40

Finding the Fourth Proportional to 23,312.20, 34,979.10 and 12,231.40

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Solution

The fourth proportional to 23,312.20, 34,979.10 and 12,231.40 is: 18,352.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,312.20 : 34,979.10 = 12,231.40 : x
  2. Step 2: Convert to fraction form
    23,312.20/34,979.10 = 12,231.40/x
  3. Step 3: Cross multiply
    23,312.20x = 34,979.10 × 12,231.40
  4. Step 4: Simplify right side
    23,312.20x = 427,843,363.74
  5. Step 5: Solve for x
    x = 427,843,363.74/23,312.20
  6. Step 6: Final answer
    x = 18,352.77

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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.