Home / 25,437.20-38,161.60-7,908.80

Finding the Fourth Proportional to 25,437.20, 38,161.60 and 7,908.80

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Solution

The fourth proportional to 25,437.20, 38,161.60 and 7,908.80 is: 11,865.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,437.20 : 38,161.60 = 7,908.80 : x
  2. Step 2: Convert to fraction form
    25,437.20/38,161.60 = 7,908.80/x
  3. Step 3: Cross multiply
    25,437.20x = 38,161.60 × 7,908.80
  4. Step 4: Simplify right side
    25,437.20x = 301,812,462.08
  5. Step 5: Solve for x
    x = 301,812,462.08/25,437.20
  6. Step 6: Final answer
    x = 11,865.00

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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.