Home / 27,142.08-37,452.80-15,813.92

Finding the Fourth Proportional to 27,142.08, 37,452.80 and 15,813.92

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Solution

The fourth proportional to 27,142.08, 37,452.80 and 15,813.92 is: 21,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,142.08 : 37,452.80 = 15,813.92 : x
  2. Step 2: Convert to fraction form
    27,142.08/37,452.80 = 15,813.92/x
  3. Step 3: Cross multiply
    27,142.08x = 37,452.80 × 15,813.92
  4. Step 4: Simplify right side
    27,142.08x = 592,275,582.98
  5. Step 5: Solve for x
    x = 592,275,582.98/27,142.08
  6. Step 6: Final answer
    x = 21,821.30

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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.