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Finding the Fourth Proportional to 25,685.00, 38,528.46 and 12,536.98

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Solution

The fourth proportional to 25,685.00, 38,528.46 and 12,536.98 is: 18,805.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,685.00 : 38,528.46 = 12,536.98 : x
  2. Step 2: Convert to fraction form
    25,685.00/38,528.46 = 12,536.98/x
  3. Step 3: Cross multiply
    25,685.00x = 38,528.46 × 12,536.98
  4. Step 4: Simplify right side
    25,685.00x = 483,030,436.13
  5. Step 5: Solve for x
    x = 483,030,436.13/25,685.00
  6. Step 6: Final answer
    x = 18,805.94

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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.