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Finding the Fourth Proportional to 28,502.40, 42,811.20 and 27,523.20

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Solution

The fourth proportional to 28,502.40, 42,811.20 and 27,523.20 is: 41,340.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502.40 : 42,811.20 = 27,523.20 : x
  2. Step 2: Convert to fraction form
    28,502.40/42,811.20 = 27,523.20/x
  3. Step 3: Cross multiply
    28,502.40x = 42,811.20 × 27,523.20
  4. Step 4: Simplify right side
    28,502.40x = 1,178,301,219.84
  5. Step 5: Solve for x
    x = 1,178,301,219.84/28,502.40
  6. Step 6: Final answer
    x = 41,340.42

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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.