Home / 25,231.20-37,846.80-13,538.40

Finding the Fourth Proportional to 25,231.20, 37,846.80 and 13,538.40

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Solution

The fourth proportional to 25,231.20, 37,846.80 and 13,538.40 is: 20,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,231.20 : 37,846.80 = 13,538.40 : x
  2. Step 2: Convert to fraction form
    25,231.20/37,846.80 = 13,538.40/x
  3. Step 3: Cross multiply
    25,231.20x = 37,846.80 × 13,538.40
  4. Step 4: Simplify right side
    25,231.20x = 512,385,117.12
  5. Step 5: Solve for x
    x = 512,385,117.12/25,231.20
  6. Step 6: Final answer
    x = 20,307.60

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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.