Home / 25,155.90-34,725.74-16,981.11

Finding the Fourth Proportional to 25,155.90, 34,725.74 and 16,981.11

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Solution

The fourth proportional to 25,155.90, 34,725.74 and 16,981.11 is: 23,441.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,155.90 : 34,725.74 = 16,981.11 : x
  2. Step 2: Convert to fraction form
    25,155.90/34,725.74 = 16,981.11/x
  3. Step 3: Cross multiply
    25,155.90x = 34,725.74 × 16,981.11
  4. Step 4: Simplify right side
    25,155.90x = 589,681,525.87
  5. Step 5: Solve for x
    x = 589,681,525.87/25,155.90
  6. Step 6: Final answer
    x = 23,441.08

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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.