Home / 27,311.51-40,971.94-12,521.69

Finding the Fourth Proportional to 27,311.51, 40,971.94 and 12,521.69

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Solution

The fourth proportional to 27,311.51, 40,971.94 and 12,521.69 is: 18,784.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,311.51 : 40,971.94 = 12,521.69 : x
  2. Step 2: Convert to fraction form
    27,311.51/40,971.94 = 12,521.69/x
  3. Step 3: Cross multiply
    27,311.51x = 40,971.94 × 12,521.69
  4. Step 4: Simplify right side
    27,311.51x = 513,037,931.38
  5. Step 5: Solve for x
    x = 513,037,931.38/27,311.51
  6. Step 6: Final answer
    x = 18,784.68

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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.