Home / 19,209.40-28,781.70-15,904.60

Finding the Fourth Proportional to 19,209.40, 28,781.70 and 15,904.60

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Solution

The fourth proportional to 19,209.40, 28,781.70 and 15,904.60 is: 23,830.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.40 : 28,781.70 = 15,904.60 : x
  2. Step 2: Convert to fraction form
    19,209.40/28,781.70 = 15,904.60/x
  3. Step 3: Cross multiply
    19,209.40x = 28,781.70 × 15,904.60
  4. Step 4: Simplify right side
    19,209.40x = 457,761,425.82
  5. Step 5: Solve for x
    x = 457,761,425.82/19,209.40
  6. Step 6: Final answer
    x = 23,830.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.