Home / 25,641.24-35,400.92-19,661.40

Finding the Fourth Proportional to 25,641.24, 35,400.92 and 19,661.40

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Solution

The fourth proportional to 25,641.24, 35,400.92 and 19,661.40 is: 27,145.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,641.24 : 35,400.92 = 19,661.40 : x
  2. Step 2: Convert to fraction form
    25,641.24/35,400.92 = 19,661.40/x
  3. Step 3: Cross multiply
    25,641.24x = 35,400.92 × 19,661.40
  4. Step 4: Simplify right side
    25,641.24x = 696,031,648.49
  5. Step 5: Solve for x
    x = 696,031,648.49/25,641.24
  6. Step 6: Final answer
    x = 27,145.01

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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.