Home / 25,031.20-34,542.53-13,700.43

Finding the Fourth Proportional to 25,031.20, 34,542.53 and 13,700.43

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Solution

The fourth proportional to 25,031.20, 34,542.53 and 13,700.43 is: 18,906.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,031.20 : 34,542.53 = 13,700.43 : x
  2. Step 2: Convert to fraction form
    25,031.20/34,542.53 = 13,700.43/x
  3. Step 3: Cross multiply
    25,031.20x = 34,542.53 × 13,700.43
  4. Step 4: Simplify right side
    25,031.20x = 473,247,514.29
  5. Step 5: Solve for x
    x = 473,247,514.29/25,031.20
  6. Step 6: Final answer
    x = 18,906.31

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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.