Home / 19,400.19-28,968.78-15,406.62

Finding the Fourth Proportional to 19,400.19, 28,968.78 and 15,406.62

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Solution

The fourth proportional to 19,400.19, 28,968.78 and 15,406.62 is: 23,005.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,400.19 : 28,968.78 = 15,406.62 : x
  2. Step 2: Convert to fraction form
    19,400.19/28,968.78 = 15,406.62/x
  3. Step 3: Cross multiply
    19,400.19x = 28,968.78 × 15,406.62
  4. Step 4: Simplify right side
    19,400.19x = 446,310,985.32
  5. Step 5: Solve for x
    x = 446,310,985.32/19,400.19
  6. Step 6: Final answer
    x = 23,005.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.