Home / 38,849.45-53,616.98-21,854.40

Finding the Fourth Proportional to 38,849.45, 53,616.98 and 21,854.40

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Solution

The fourth proportional to 38,849.45, 53,616.98 and 21,854.40 is: 30,161.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,849.45 : 53,616.98 = 21,854.40 : x
  2. Step 2: Convert to fraction form
    38,849.45/53,616.98 = 21,854.40/x
  3. Step 3: Cross multiply
    38,849.45x = 53,616.98 × 21,854.40
  4. Step 4: Simplify right side
    38,849.45x = 1,171,767,019.50
  5. Step 5: Solve for x
    x = 1,171,767,019.50/38,849.45
  6. Step 6: Final answer
    x = 30,161.74

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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.