Home / 27,213.63-40,833-12,427.08

Finding the Fourth Proportional to 27,213.63, 40,833 and 12,427.08

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Solution

The fourth proportional to 27,213.63, 40,833 and 12,427.08 is: 18,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,213.63 : 40,833 = 12,427.08 : x
  2. Step 2: Convert to fraction form
    27,213.63/40,833 = 12,427.08/x
  3. Step 3: Cross multiply
    27,213.63x = 40,833 × 12,427.08
  4. Step 4: Simplify right side
    27,213.63x = 507,434,957.64
  5. Step 5: Solve for x
    x = 507,434,957.64/27,213.63
  6. Step 6: Final answer
    x = 18,646.35

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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.