Home / 28,247.64-38,965.54-17,618.80

Finding the Fourth Proportional to 28,247.64, 38,965.54 and 17,618.80

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Solution

The fourth proportional to 28,247.64, 38,965.54 and 17,618.80 is: 24,303.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.64 : 38,965.54 = 17,618.80 : x
  2. Step 2: Convert to fraction form
    28,247.64/38,965.54 = 17,618.80/x
  3. Step 3: Cross multiply
    28,247.64x = 38,965.54 × 17,618.80
  4. Step 4: Simplify right side
    28,247.64x = 686,526,056.15
  5. Step 5: Solve for x
    x = 686,526,056.15/28,247.64
  6. Step 6: Final answer
    x = 24,303.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.