Home / 19,161.45-28,572.95-16,830.99

Finding the Fourth Proportional to 19,161.45, 28,572.95 and 16,830.99

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Solution

The fourth proportional to 19,161.45, 28,572.95 and 16,830.99 is: 25,097.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,161.45 : 28,572.95 = 16,830.99 : x
  2. Step 2: Convert to fraction form
    19,161.45/28,572.95 = 16,830.99/x
  3. Step 3: Cross multiply
    19,161.45x = 28,572.95 × 16,830.99
  4. Step 4: Simplify right side
    19,161.45x = 480,911,077.80
  5. Step 5: Solve for x
    x = 480,911,077.80/19,161.45
  6. Step 6: Final answer
    x = 25,097.84

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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.