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Finding the Fourth Proportional to 25,701.60, 38,559.60 and 12,554.40

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Solution

The fourth proportional to 25,701.60, 38,559.60 and 12,554.40 is: 18,835.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,701.60 : 38,559.60 = 12,554.40 : x
  2. Step 2: Convert to fraction form
    25,701.60/38,559.60 = 12,554.40/x
  3. Step 3: Cross multiply
    25,701.60x = 38,559.60 × 12,554.40
  4. Step 4: Simplify right side
    25,701.60x = 484,092,642.24
  5. Step 5: Solve for x
    x = 484,092,642.24/25,701.60
  6. Step 6: Final answer
    x = 18,835.12

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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.