Home / 22,207.08-30,644.85-12,135.87

Finding the Fourth Proportional to 22,207.08, 30,644.85 and 12,135.87

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Solution

The fourth proportional to 22,207.08, 30,644.85 and 12,135.87 is: 16,746.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,207.08 : 30,644.85 = 12,135.87 : x
  2. Step 2: Convert to fraction form
    22,207.08/30,644.85 = 12,135.87/x
  3. Step 3: Cross multiply
    22,207.08x = 30,644.85 × 12,135.87
  4. Step 4: Simplify right side
    22,207.08x = 371,901,762.55
  5. Step 5: Solve for x
    x = 371,901,762.55/22,207.08
  6. Step 6: Final answer
    x = 16,746.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.