Home / 25,073.45-34,581.41-21,309.08

Finding the Fourth Proportional to 25,073.45, 34,581.41 and 21,309.08

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Solution

The fourth proportional to 25,073.45, 34,581.41 and 21,309.08 is: 29,389.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,073.45 : 34,581.41 = 21,309.08 : x
  2. Step 2: Convert to fraction form
    25,073.45/34,581.41 = 21,309.08/x
  3. Step 3: Cross multiply
    25,073.45x = 34,581.41 × 21,309.08
  4. Step 4: Simplify right side
    25,073.45x = 736,897,952.52
  5. Step 5: Solve for x
    x = 736,897,952.52/25,073.45
  6. Step 6: Final answer
    x = 29,389.57

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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.