Home / 27,212.13-40,830.75-12,425.58

Finding the Fourth Proportional to 27,212.13, 40,830.75 and 12,425.58

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Solution

The fourth proportional to 27,212.13, 40,830.75 and 12,425.58 is: 18,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,212.13 : 40,830.75 = 12,425.58 : x
  2. Step 2: Convert to fraction form
    27,212.13/40,830.75 = 12,425.58/x
  3. Step 3: Cross multiply
    27,212.13x = 40,830.75 × 12,425.58
  4. Step 4: Simplify right side
    27,212.13x = 507,345,750.59
  5. Step 5: Solve for x
    x = 507,345,750.59/27,212.13
  6. Step 6: Final answer
    x = 18,644.10

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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.