Home / 25,120.49-34,666.74-13,791.06

Finding the Fourth Proportional to 25,120.49, 34,666.74 and 13,791.06

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Solution

The fourth proportional to 25,120.49, 34,666.74 and 13,791.06 is: 19,031.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,120.49 : 34,666.74 = 13,791.06 : x
  2. Step 2: Convert to fraction form
    25,120.49/34,666.74 = 13,791.06/x
  3. Step 3: Cross multiply
    25,120.49x = 34,666.74 × 13,791.06
  4. Step 4: Simplify right side
    25,120.49x = 478,090,849.06
  5. Step 5: Solve for x
    x = 478,090,849.06/25,120.49
  6. Step 6: Final answer
    x = 19,031.91

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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.