Home / 25,405.92-35,061.40-15,334.18

Finding the Fourth Proportional to 25,405.92, 35,061.40 and 15,334.18

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Solution

The fourth proportional to 25,405.92, 35,061.40 and 15,334.18 is: 21,161.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,405.92 : 35,061.40 = 15,334.18 : x
  2. Step 2: Convert to fraction form
    25,405.92/35,061.40 = 15,334.18/x
  3. Step 3: Cross multiply
    25,405.92x = 35,061.40 × 15,334.18
  4. Step 4: Simplify right side
    25,405.92x = 537,637,818.65
  5. Step 5: Solve for x
    x = 537,637,818.65/25,405.92
  6. Step 6: Final answer
    x = 21,161.91

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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.