Home / 19,089.60-28,569.60-16,756.80

Finding the Fourth Proportional to 19,089.60, 28,569.60 and 16,756.80

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Solution

The fourth proportional to 19,089.60, 28,569.60 and 16,756.80 is: 25,078.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.60 : 28,569.60 = 16,756.80 : x
  2. Step 2: Convert to fraction form
    19,089.60/28,569.60 = 16,756.80/x
  3. Step 3: Cross multiply
    19,089.60x = 28,569.60 × 16,756.80
  4. Step 4: Simplify right side
    19,089.60x = 478,735,073.28
  5. Step 5: Solve for x
    x = 478,735,073.28/19,089.60
  6. Step 6: Final answer
    x = 25,078.32

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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.