Home / 18,980.16-28,470.27-5,832.45

Finding the Fourth Proportional to 18,980.16, 28,470.27 and 5,832.45

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Solution

The fourth proportional to 18,980.16, 28,470.27 and 5,832.45 is: 8,748.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,980.16 : 28,470.27 = 5,832.45 : x
  2. Step 2: Convert to fraction form
    18,980.16/28,470.27 = 5,832.45/x
  3. Step 3: Cross multiply
    18,980.16x = 28,470.27 × 5,832.45
  4. Step 4: Simplify right side
    18,980.16x = 166,051,426.26
  5. Step 5: Solve for x
    x = 166,051,426.26/18,980.16
  6. Step 6: Final answer
    x = 8,748.68

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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.