Home / 19,975.48-27,562.54-12,423.80

Finding the Fourth Proportional to 19,975.48, 27,562.54 and 12,423.80

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Solution

The fourth proportional to 19,975.48, 27,562.54 and 12,423.80 is: 17,142.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.48 : 27,562.54 = 12,423.80 : x
  2. Step 2: Convert to fraction form
    19,975.48/27,562.54 = 12,423.80/x
  3. Step 3: Cross multiply
    19,975.48x = 27,562.54 × 12,423.80
  4. Step 4: Simplify right side
    19,975.48x = 342,431,484.45
  5. Step 5: Solve for x
    x = 342,431,484.45/19,975.48
  6. Step 6: Final answer
    x = 17,142.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.