Home / 27,215.42-40,808.55-12,416.36

Finding the Fourth Proportional to 27,215.42, 40,808.55 and 12,416.36

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Solution

The fourth proportional to 27,215.42, 40,808.55 and 12,416.36 is: 18,617.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,215.42 : 40,808.55 = 12,416.36 : x
  2. Step 2: Convert to fraction form
    27,215.42/40,808.55 = 12,416.36/x
  3. Step 3: Cross multiply
    27,215.42x = 40,808.55 × 12,416.36
  4. Step 4: Simplify right side
    27,215.42x = 506,693,647.88
  5. Step 5: Solve for x
    x = 506,693,647.88/27,215.42
  6. Step 6: Final answer
    x = 18,617.89

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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.