Home / 18,935.53-28,420.92-9,582.20

Finding the Fourth Proportional to 18,935.53, 28,420.92 and 9,582.20

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Solution

The fourth proportional to 18,935.53, 28,420.92 and 9,582.20 is: 14,382.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,935.53 : 28,420.92 = 9,582.20 : x
  2. Step 2: Convert to fraction form
    18,935.53/28,420.92 = 9,582.20/x
  3. Step 3: Cross multiply
    18,935.53x = 28,420.92 × 9,582.20
  4. Step 4: Simplify right side
    18,935.53x = 272,334,939.62
  5. Step 5: Solve for x
    x = 272,334,939.62/18,935.53
  6. Step 6: Final answer
    x = 14,382.22

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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.