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Finding the Fourth Proportional to 38,482.40, 57,723.60 and 23,784.80

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Solution

The fourth proportional to 38,482.40, 57,723.60 and 23,784.80 is: 35,677.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,482.40 : 57,723.60 = 23,784.80 : x
  2. Step 2: Convert to fraction form
    38,482.40/57,723.60 = 23,784.80/x
  3. Step 3: Cross multiply
    38,482.40x = 57,723.60 × 23,784.80
  4. Step 4: Simplify right side
    38,482.40x = 1,372,944,281.28
  5. Step 5: Solve for x
    x = 1,372,944,281.28/38,482.40
  6. Step 6: Final answer
    x = 35,677.20

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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.