Home / 25,120.24-34,666.37-13,790.80

Finding the Fourth Proportional to 25,120.24, 34,666.37 and 13,790.80

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Solution

The fourth proportional to 25,120.24, 34,666.37 and 13,790.80 is: 19,031.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,120.24 : 34,666.37 = 13,790.80 : x
  2. Step 2: Convert to fraction form
    25,120.24/34,666.37 = 13,790.80/x
  3. Step 3: Cross multiply
    25,120.24x = 34,666.37 × 13,790.80
  4. Step 4: Simplify right side
    25,120.24x = 478,076,975.40
  5. Step 5: Solve for x
    x = 478,076,975.40/25,120.24
  6. Step 6: Final answer
    x = 19,031.54

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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.