Home / 27,207.63-40,824-12,421.08

Finding the Fourth Proportional to 27,207.63, 40,824 and 12,421.08

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Solution

The fourth proportional to 27,207.63, 40,824 and 12,421.08 is: 18,637.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,207.63 : 40,824 = 12,421.08 : x
  2. Step 2: Convert to fraction form
    27,207.63/40,824 = 12,421.08/x
  3. Step 3: Cross multiply
    27,207.63x = 40,824 × 12,421.08
  4. Step 4: Simplify right side
    27,207.63x = 507,078,169.92
  5. Step 5: Solve for x
    x = 507,078,169.92/27,207.63
  6. Step 6: Final answer
    x = 18,637.35

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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.