Home / 25,205.40-34,739.50-18,476.72

Finding the Fourth Proportional to 25,205.40, 34,739.50 and 18,476.72

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Solution

The fourth proportional to 25,205.40, 34,739.50 and 18,476.72 is: 25,465.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,205.40 : 34,739.50 = 18,476.72 : x
  2. Step 2: Convert to fraction form
    25,205.40/34,739.50 = 18,476.72/x
  3. Step 3: Cross multiply
    25,205.40x = 34,739.50 × 18,476.72
  4. Step 4: Simplify right side
    25,205.40x = 641,872,014.44
  5. Step 5: Solve for x
    x = 641,872,014.44/25,205.40
  6. Step 6: Final answer
    x = 25,465.65

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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.