Home / 27,219.85-40,809.02-12,418.42

Finding the Fourth Proportional to 27,219.85, 40,809.02 and 12,418.42

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Solution

The fourth proportional to 27,219.85, 40,809.02 and 12,418.42 is: 18,618.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,219.85 : 40,809.02 = 12,418.42 : x
  2. Step 2: Convert to fraction form
    27,219.85/40,809.02 = 12,418.42/x
  3. Step 3: Cross multiply
    27,219.85x = 40,809.02 × 12,418.42
  4. Step 4: Simplify right side
    27,219.85x = 506,783,569.83
  5. Step 5: Solve for x
    x = 506,783,569.83/27,219.85
  6. Step 6: Final answer
    x = 18,618.16

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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.