Home / 27,143.50-37,458-15,044.80

Finding the Fourth Proportional to 27,143.50, 37,458 and 15,044.80

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Solution

The fourth proportional to 27,143.50, 37,458 and 15,044.80 is: 20,761.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,143.50 : 37,458 = 15,044.80 : x
  2. Step 2: Convert to fraction form
    27,143.50/37,458 = 15,044.80/x
  3. Step 3: Cross multiply
    27,143.50x = 37,458 × 15,044.80
  4. Step 4: Simplify right side
    27,143.50x = 563,548,118.40
  5. Step 5: Solve for x
    x = 563,548,118.40/27,143.50
  6. Step 6: Final answer
    x = 20,761.81

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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.