Home / 19,151.20-28,559.08-18,976.16

Finding the Fourth Proportional to 19,151.20, 28,559.08 and 18,976.16

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Solution

The fourth proportional to 19,151.20, 28,559.08 and 18,976.16 is: 28,298.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,151.20 : 28,559.08 = 18,976.16 : x
  2. Step 2: Convert to fraction form
    19,151.20/28,559.08 = 18,976.16/x
  3. Step 3: Cross multiply
    19,151.20x = 28,559.08 × 18,976.16
  4. Step 4: Simplify right side
    19,151.20x = 541,941,671.53
  5. Step 5: Solve for x
    x = 541,941,671.53/19,151.20
  6. Step 6: Final answer
    x = 28,298.05

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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.