Home / 25,439.20-35,138.81-19,543.41

Finding the Fourth Proportional to 25,439.20, 35,138.81 and 19,543.41

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Solution

The fourth proportional to 25,439.20, 35,138.81 and 19,543.41 is: 26,995.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,439.20 : 35,138.81 = 19,543.41 : x
  2. Step 2: Convert to fraction form
    25,439.20/35,138.81 = 19,543.41/x
  3. Step 3: Cross multiply
    25,439.20x = 35,138.81 × 19,543.41
  4. Step 4: Simplify right side
    25,439.20x = 686,732,219.60
  5. Step 5: Solve for x
    x = 686,732,219.60/25,439.20
  6. Step 6: Final answer
    x = 26,995.04

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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.