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Finding the Fourth Proportional to 25,549.40, 38,314.54 and 8,905.16

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Solution

The fourth proportional to 25,549.40, 38,314.54 and 8,905.16 is: 13,354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,549.40 : 38,314.54 = 8,905.16 : x
  2. Step 2: Convert to fraction form
    25,549.40/38,314.54 = 8,905.16/x
  3. Step 3: Cross multiply
    25,549.40x = 38,314.54 × 8,905.16
  4. Step 4: Simplify right side
    25,549.40x = 341,197,109.03
  5. Step 5: Solve for x
    x = 341,197,109.03/25,549.40
  6. Step 6: Final answer
    x = 13,354.41

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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.