Home / 27,220.85-40,810.52-12,419.42

Finding the Fourth Proportional to 27,220.85, 40,810.52 and 12,419.42

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Solution

The fourth proportional to 27,220.85, 40,810.52 and 12,419.42 is: 18,619.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,220.85 : 40,810.52 = 12,419.42 : x
  2. Step 2: Convert to fraction form
    27,220.85/40,810.52 = 12,419.42/x
  3. Step 3: Cross multiply
    27,220.85x = 40,810.52 × 12,419.42
  4. Step 4: Simplify right side
    27,220.85x = 506,842,988.30
  5. Step 5: Solve for x
    x = 506,842,988.30/27,220.85
  6. Step 6: Final answer
    x = 18,619.66

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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.